Answer:
D.
Step-by-step explanation:
A collaboration workload can be defined as a condition in which a worker tend to spend more time in responding to the requests of other colleagues, that he/she have little or less time and energy for their own work. This happens when there's too much of email's to respond, documentations to be prepared, and endless meetings.
In the given case, Gabriela who is a research scientist is being bombarded with so many phone calls and meetings that she seldom has time for her research work. This shows that Gabriela's situation is an example of collaboration workload.
So, the correct answer is option D.