Spot the error in the given sentence and choose the most appropriate option:

(A) She is fond / (B) of reading novels / (C) and often spend / (D) her evenings at the library.

C

The correct answer is Option (2) - C

"Spend" should be corrected to "spends" to agree with the singular subject "She."
Corrected Sentence: "She is fond of reading novels and often spends her evenings at the library."