This would be D. Cross training!
Cross training is when you are trained in multiples areas incase something happens and someone cannot show up for their job.
Lymphoma exhibits a lot of different symptoms. Lymphoma has been known to exhibit the symptoms similar to strep throat when it is locate in the lymph nodes in the neck. Fever, sore throat, swelling of the lymph nodes, sometimes nodules that are of various size develop. There is weight loss. There is loss of appetite.