Understanding the structure or meaning of words.
a. syntax
c. learning acquisition
b. semantics
d. grammar

the answer should be b.

explanation:

it should be b because she researched before writing so it would be in past tense. "the author researches her subject before she had written the first draft.

hello! : )

i’m i haven’t read that. also you can’t really expect someone to write it for you. use your own knowledge and skill and i am sure you’ll get it!

good luck!

~ destiny ^_^