Question 1- A
Question 2- B
Correct, there isn’t anything else you can do to the sentence.
Hum..can be a noun but a noun is a person place or thing and can be a verb but a verb is an action word so humm.. so on my opinion is a adjective ☺
The answer to the first blank above would be ''decisiveness'' and the other would be "unscathed". Possessing strong resolve or decisiveness is sometimes needed to escape unharmed or unscathed during stressful times or situations.