elementary
straightforward
shallow
perfunctory
Answer is Right!
Answer is Wrong!
The correct answer is C. Shallow.
A. Elementary means basic or simple.
B. Straightforward means easy to understand or do.
C. Shallow means not deep or not having much depth.
D. Perfunctory means done without care or interest.
A shallow lake is not very deep. A shallow understanding of a topic is not very detailed or complete. A shallow person is not very intelligent or thoughtful.
The opposite of deep is shallow. Something that is deep is not shallow. Something that is shallow is not deep.