A is the answer. B has a 'plural verb' and a singular subject, as does C. D has a plural subject and 'singular verb'
I believe that would be irony
I believe the answer is D (However) because C (Therefore) would not make sense as it means ‘for that reason’ or ‘consequently’, B (Then) is a time connective so that would not make sense as a transition word to connect the paragraph, and A (now) could be referred to as informal depending on how you use it, and it is commonly used as an adverb of time.
I hope this helped
Imperative
1) Indicative
2) Subjunctive
3) Indicative
4) Imperative
5) Indicative
6) Imperative
7) Subjunctive
8) Indicative
