Select the most appropriate option that can substitute the highlighted words in the given sentence.
I have been living in this country since last several years but have never experienced any discrimination.

Correct option is A

The correct phrase is (a) for the last several years.
Explanation:
· Use ‘for’ with a period of time (duration) like “three years,” “ten minutes.”
· Use ‘since’ with a point in time like “2010,” “Monday,” etc.
Grammatical Rule Used:
Use for + duration, and since + specific point in time.
Example:
· I’ve lived here for five years.
· I’ve lived here since 2018.