T1W9 TS Q38 – Selective High School

Whoever designed the program knew data structures and algorithms.

If this is true, which one of these sentences must also be true?

If Trenton is not knowledgeable in web development, he cannot have designed the program. If Trenton is not knowledgeable in data structures, he cannot have designed the program. If Trenton is not the designer of the program, he does not know algorithms. If Trenton knows data structures and algorithms, he must have designed the program.

Are you sure you want to leave?

If this is true, which one of these sentences must also be true?