The lymphatic system drains into lymphatic trunks (right and left lymphatic duct) which drains into vessels of the neck (right subclavian vein)
the answer to this problem is c
ATP is adenosine triphosphate, it is like a fully charged battery in a cell, ADP is basically ATP that has been drained of its energy from a chemical reaction. It is like a dead battery that can be recharged later ;)
I can answer when you say if you are talking about cells or no