A Corporate User Notices That When Using the Company Laptop

Multiple Choice

A corporate user notices that when using the company laptop or his cell phone,WiFi connectivity is good,but when he uses the cell phone as a hotspot in the same area of the room,the Internet connection is extremely slow.What is most likely the problem?

A) The cell phone software needs to be updated.
B) The company has implemented bandwidth throttling.
C) There are too many wireless devices in the area.
D) There is wireless interference from an adjacent wireless network using the same channel.