Select the most appropriate option to fill in blank number 5.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. regardless.
The blank is filled with "regardless" because the sentence is making a contrast between what may or may not be true about the speaker's personal academic history and a broader observation about the commonality of school-related stress dreams.
The phrase "And, well, regardless of what may or may not be true of my personal scholastic rigour" means that whether or not the speaker was actually unprepared in college, the key point is that school-related stress dreams are common.