Gestures
Yes. It is gestures.
Answer:
C. We must bear in mind that the enemy is crafty, unscrupulous, experienced in deception and the dissemination of false rumors.
Explanation:
The words that help create anorder of events is 'until' and 'then'
It is necessary because if you don't have a confirmed opinion with textual evidence to back it up you wont have a good argument.
