Distrust:
disbelief
doubt
misgiving
wariness
Promote:
advertise
promote
Reassuring:
comfort
encourage
inspirit
Welfare:
benefit
well-being
I believe that the answer could be D. I hope this helps
The option C) The students protested again the tardy policy.
It manages to be concise by using a direct language, a simple structure and just the necessary of words.