Analysieren Sie das folgende Formular und kreuzen Sie die zutreffenden Aussagen an:

<form id="form_grade" action="index.php" method="post">
    <div class="row">
        <div class="col-sm-6 form-group">
            <label for="name">Name*</label>
            <input type="text" name="name"
                   class="form-control <?= isset($errors['name']) ? 'is-invalid' : '' ?>"
                   value="<?= htmlspecialchars($name) ?>"
                   maxlength="20" required="required"
            />
        </div>
        <div class="col-sm-6 form-group">
            <label for="email">E-Mail</label>
            <input type="email" name="email"
                   class="form-control <?= isset($errors['email']) ? 'is-invalid' : '' ?>"
                   value="<?= htmlspecialchars($email) ?>"
            />
        </div>
    </div>
    <div class="row">
        <div class="col-sm-4 form-group">
            <label for="subject">Fach*</label>
            <select name="subject"
                    class="custom-select <?= isset($errors['subject']) ? 'is-invalid' : '' ?>"
                    required="required">
                <option value="" hidden>- Fach auswählen -</option>
                <option value="m" <?php if ($subject == 'm') echo "selected='selected'"; ?> >Mathematik</option>
                <option value="d" <?php if ($subject == 'd') echo "selected='selected'"; ?> >Deutsch</option>
                <option value="e" <?php if ($subject == 'e') echo "selected='selected'"; ?> >Englisch</option>
            </select>
        </div>
        <div class="col-sm-4 form-group">
            <label for="grade">Note*</label>
            <input type="number" name="grade"
                   class="form-control <?= isset($errors['grade']) ? 'is-invalid' : '' ?>"
                   value="<?= htmlspecialchars($grade) ?>"
                   min="1" max="5" required="required"
            />
        </div>
        <div class="col-sm-4 form-group">
            <label for="examDate">Prüfungsdatum*</label>
            <input type="date" name="examDate"
                   class="form-control <?= isset($errors['examDate']) ? 'is-invalid' : '' ?>"
                   value="<?= htmlspecialchars($examDate) ?>"
                   onchange="validateExamDate(this)"
                   required="required"
            />
        </div>
    </div>
    <div class="row mt-3">
        <div class="col-sm-3 mb-3">
            <input type="submit" name="submit" class="btn btn-primary btn-block" value="Validieren"/>
        </div>
        <div class="col-sm-3">
            <a href="index.php" class="btn btn-secondary btn-block">Löschen</a>
        </div>
    </div>
</form>