I graduated in Geology in 1975 and Pharmacy in 1985. In 1975 the professors use mostly subjective questions unless their was only one right answer in which case they used objective tests.
In 1985 in Pharmacy school almost everything was objective. The professors were protecting themselves from accusations of racial discrimination, thus they went to right or wrong answers. Those tests can be a real bitch.
Oddly in Pharmacology and Disease courses it was almost completely subjective as there are more than one right answer for disease treatment. By the time you get to these courses those that can not hack it in a tough major are gone as chem, physics, math etc. has already got rid of the weak. You will make it.
How was Ivertmectin covered?