I need assistance with the following sentence. Which is correct?
The rumble of the explosions was deafening.
The rumble of the explosions were deafening.
I know rumble is the subject, however, it's a bit confusing to me since it's the explosions that are actually creating it.
Rumble ... was.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.