Unmake is indeed a word. It is a verb meaning to reverse, or undo the making of. Synonyms include to ruin or destroy.
The use of these words, unmake and sensible, together is uncommon. A better phrase to use would be: "to confuse," "to ignore," or to "be unreasonable, 'depending on the usage.
Answer:
d. he and I played video games Saturday
Rainsford had dug himself in when he was in France when a seconds delay meant death.
"I" represents the subject in the sentence.
I don’t know if this is what they are looking for but They know the opponents tactics so it could be used against them.