These poor (3) results have occured when students where unable to package the (4) instructors ideas's into easily units.

Question

(3)
a)no change
b)results occur
c)results occurred

I think the answer is c) since this sentence is talking in the past tense.

(4)
a)no change
b)instructors' idea's
c)instructor's ideas
d)instructor's idea's

which question 4 I chose
c) since I the ideas were the intructors.

Please let me know if I got them right
thanks

Answer 1

Yes, both are correct.

Answer 2

Yes!! thanks

Answer 3

You're welcome!