Question

When Benjamin Button says in a weak voice, “Nice way to welcome a newborn child,” he is using oxymoron. sarcasm. situational irony. verbal irony.

Answer 1

I'd say verbal irony..since he says it but in a weak voice meaning lacking self confidence so it must be that.

Answer 2

I don't know what the situation is, it would help if i did, but i'd say it's sarcasm.

Answer 3

I don't know who this mysterious Benjamin Button is, so I don't know the situation, but I think it can be both verbal irony and sarcasm.

Verbal irony is when someone says one thing but means another.
Sarcasm is the use of irony to mock someone.