I think you should mention why you want to become a veterarian and what inspired you to do so!
Explanation:
A heartfelt explanation gets points! Give multiple examples of why you think this job is for you! Maybe you like animals or you saw a vet cure your pet and you feel inspired to help animals as well! Things like that!
Unfortunately, people with lower self esteem are more likely to abuse drugs than the rest of their peers... They don't feel worthy and feel useless to the world.. So the answer is d.