Final answer:
The error in the sentence is in the segment 'am enjoying,' which should be 'enjoy' to match the present simple tense used to describe a habitual action.
option 'c' is the correct
Step-by-step explanation:
The student's question involves identifying an error in a sentence, which is a common task in English grammar exercises. The underlined segment with the error is 'c) am enjoying'.
The sentence should use the present simple tense 'enjoy' instead of the present continuous tense 'am enjoying' to match the tense in the rest of the sentence, which talks about a habitual action.
Hence, the correct sentence should read: 'Whenever I go on vacation, I always bring a lot of extra money for buying souvenirs. I enjoy shopping in new stores, especially in foreign countries.'