Correct Option: A

soothe (Verb) : calm ; to make somebody who is anxious, upset, etc. feel calmer
provoke (Verb) : to cause a particular reaction or have a particular effect ; to say/do something that you know will annoy somebody so that it may react in an angry way ; goad
incite (Verb) : to encourage to do something violent
smoother (Verb) : to make smooth or smoother ; become smooth
entice (Verb) : to persuade