Which of the following Statements is/are true?

A. A consumer consumes chocolate bars. After the 4th bar, total utility is at its maximum. This means that total utility will remain same after the 5th bar.

B. The Marginal utility of the 1st unit is always equal to its marginal utility.

C. The total utility first increases at a decreasing rate and then at an increasing rate before reaching the maximum point.

 D. If MUM were constant in real life, then losing ₹1,000 would cause the same pain to a millionaire as to a daily wage worker.