The correct answer is D) I wonder if they will even exist for my children
"perfect chances of verbs?" I haven't heard of that, ever, in my 73 years.
Is it possible that you meant "perfect tenses of verbs?"
One possible answer for consideration would be "auxiliary verb," such as "had," "have," and so on.
THE CORRECT ANSWER IS c. cowardly it is 10000% CORRECT HAVE A GREAT REST OF YOUR DAY:)