Chemistry Drawing Question: Reaction Mechanism

The mechanistic arrow (see p. 32 of your lab manual) represents the movement of 2 electrons, which forms or breaks a bond. Mechanistic arrows move from -ve to +ve. e.g. from a lone pair of electrons, a bond (which is 2 electrons) or a -ve charge

Below is an incomplete reaction scheme for a generic acid-catalysed Fischer esterification.

Select the appropriate image to complete the reaction scheme for step (a).