Supplementary Parts are usually short messages with natural, casual use of language.

A. Formal reports

B. Informal reports

C. Short reports

D. Progress report

Answer: Option C

Solution(By Examveda Team)

Short reports are supplementary Parts are usually short messages with natural, casual use of language. A short report is usually written to inform the authority concerned or specific readers about a specific matter so that they can make appropriate decision about the matter.