Which items may interfere with a wireless connection and may cause disruptions or delays in submitting assignments in blackboard? a. cell phones b. bluetooth devices c. microwave ovens d. all answers are correct?

The items that may cause to interfere a wireless connection causing a delay then in homework or assignment submission would then be large metals such as c. microwave ovens. Hope this answer would then be of big help to you.

D) All answers are correct

Explanation:

Basically the blackboard requires a secure and good wireless connection to be maintained because it uses processing power and can delay or disrupt  any network connections. In submitting assignments in blackboard, it important to know that cell phones,cordless telephone, microwave oven, bluetooth devices or another Wifi network may interfere and cause a delay or disruption.