Formal and Informal communications

Hi All,
I'm facing with the following question.

"Rosemary is the project manager at a pharmaceutical company. She begins her day by analyzing her team's work requirements. She then
assigns daily tasks to her team members over a centralized project management information system that generates task assignment
notifications for the team members. Which of the following types of communication methods has been selected by Rosemary?
A. Formal, push communication
B. Informal, pull communication
C. Formal, pull communication
D. Informal, push communication"

According to the source the correct answer is "D", Informal, push communication.
I quite agree with the "push communication", but I can't understand why it's "Informal"; IMHO since the PM uses a "centralized project management information system that generates task assignment
notifications" this could be a "Formal communication" since the System is collecting and clearly storing the information about the tasks.

What do you think about it?

Thanks a lot!

PMP Fighter's picture

I also not agree it is informal, according to RITA exam prep ,every status report should be Formal.

Where is the question come from?

Thanks for your feedback.
It's from Scorso's PMP Exam Prep Book.

answer is c

sorry abt typo it is d informal push.. because it is about daily task..which does not required formal communication

100% it is a D.Informal, Push Communications.

it is equalant to e-mail messages.

Thank you, sounds reasonable!