I think the answer is A-Features
Nouns are parts of speech used to identify and name a class of people, things, places. The nouns in this sentence are MOON which is the subject, CRATERS, and SURFACE. It can be easily identified if an article can be used before the noun
Answer:
All the pieces in Tetris have four blocks. The word "tetra" means four. Alexey named his game after tetra and tennis.
Explanation:
All tetris pieces have 4 blocks, and tetra means 4
