Instant messaging would be least effective means of communication when you have a series of complex questions to ask your colleague.
What is the aim of instant messaging?
Instant messaging is often used as a means of sending textual messages, It is known to be a short one and also quick in nature. It can occur between business colleagues and friends.
Its disadvantages is that its is an Ineffective tool for mass communication and also has issues when used for system for archiving.
See options below
A. When you want your colleague to let you know if the hyperlink you sent her is working
B. When you want to tell someone "Happy Birthday!"
C. When you have a series of complex questions to ask your colleague
D. When you want to call an impromptu meeting between some of the people in your office
Learn more about instant messaging from
https://brainly.com/question/26271202
