Answer:
The person who has the most dominant and controlling argument is the person with the most evidence to back up what they are saying.
Explanation:
The sentence is in past tense. This is noted by the ending -ed in the word healed.
Andrea because she is the most focused. Tom is acting either immature which is not a good quality in a leader. Whilst Joe is not confident and is acting shy which is also not a good quality for a leader.