Vivisection refers to the live dissection of animals or the use of live animals for experimental research?

This is very true. That's exactly what it is.

The answer would be a (carbohydrates)

Dis correct. the rest of the answers are definitely wrong.without the basic needs like food, shelter and love , one will remain trapped in trying to fulfil these needs first which means putting food on the table and struggling to pay bills. it is impossible to achieve self actualization when without the basic needs which is the base.