verb tenses

[maoyueh]

It (A. was B. is) this book that aroused my intrest in learning English.

In the above parenthesis, should I choose A or B to complete the sentence? Thank you so much.

[emsr2d2]

They both work. If this is a test question, it's a poor one. One answer is perhaps more natural/common/frequent than the other, but they are both grammatically acceptable.

[5jj]

It (A. was B. is) this book that aroused my intrest in learning English.

Note: interest.