Question

Which sentence does not contain any punctuation errors? A. You stayed up late last night; hence, you are sleepy today. B. You stayed up late last night; hence you are sleepy today. C. You stayed up late last night hence, you are sleepy today. D. You stayed up late last night, hence you are sleepy today.

Answer 1

"A. You stayed up late last night; hence, you are sleepy today" since technically "hence" should start a new phrase and be followed by a comma. Although the comma is not absolutely crucial.