Choose the word that has the correct synonym for the highlighted word.
The teacher taught the class about ____ of the earth
A. crust
B. solstice
C. core
D. magma
A. crust
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Choose the word that has the correct synonym for the highlighted word.

### Response:
A. crust