Full Definition of ASSAULT
1
a : a violent physical or verbal attack
b : a military attack usually involving direct combat with enemy forces
c : a concerted effort (as to reach a goal or defeat an adversary)
2
a : a threat or attempt to inflict offensive physical contact or bodily harm on a person (as by lifting a fist in a threatening manner) that puts the person in immediate danger of or in apprehension of such harm or contact — compare battery 1b
I would go with "C"