Which two sentences are inappropriate uses of instant messaging in the workplace?
a. Let’s arrange a video conference with the international team to discuss this idea.
b. Hi everyone. So, we’re changing the meeting venue to Conference Room
c. Hi. I just wanted to quickly check with you regarding the deadline of this project.
d. Please note that we have extended the project deadline by two days.
e. Please join us for lunch at the cafeteria downstairs if you're free.