Answer:
B. Taken aback/completely/ unjustified
Step-by-step explanation:
Evelyn and Raymond were TAKEN ABACK when the landlord refused to return their deposit and were COMPLETELY convinced that his action was UNJUSTIFIED.
Evenly and Raymond were taken aback when the landlord refused to return their deposit because they were expecting and positive that he was meant to refund them their money, buh they were surprised about the action of the landlord.
They were completely convinced that his actions was unjustified because what the landlord did wasn't right. The landlord was meant to refund them their deposit, but the landlord doesn't want to do that.