I believe its B. C and D are grammatically incorrect. B restates that the subject did it
A. apple computers can’t run windows software .
b. apple computers are generally more expensive.
What are you looking for an answer or what is your question?
Answer:
compound predicate
Explanation:
A compound sentence is composed of two sentences connected together with some form of conjunction, for example. As there is one period, there is only a single sentence.
Assuming you know already that a predicate is essentially everything in the sentence that follows the noun (in this case 'students,' then you can see that the predicate here is compound ('are completing'.... and 'are studying'....)
I think you put the quote and then (Safia 75)