Step 1: Understand the concept of written communication.
Written communication involves transmitting messages, information, or ideas through written symbols, words, or characters. It includes any communication method that uses text as the medium.
Step 2: Recall the forms of written vs. oral communication.
- Written Communication: Circulars, reports, memos, letters, emails, SMS, notices, manuals, etc.
- Oral/Verbal Communication: Discussions, meetings, conversations, speeches, telephonic talks, etc.
Step 3: Analysis of each option.
- (A) Circulars: Written communication.} Circulars are written documents distributed to a group of people for information or instruction.
- (B) Reports: Written communication.} Reports are formal written documents that present information, findings, or analysis.
- (C) Discussion: NOT written communication.} Discussion is an oral/verbal form of communication where participants exchange ideas through speaking and listening.
- (D) SMS: Written communication.} Short Message Service (SMS) involves sending text messages through mobile phones.
Step 4: Conclusion.
Among the given options, only "Discussion" is a form of oral communication. Circulars, Reports, and SMS all involve written text and therefore fall under written communication.
Final Answer:} (C) Discussion