D wpuld be the best answer because dieting is the most important thing when losing weight. If she does add weight training the body fat will decrease and turn into lean muscle.
Every seventh time a rat presses a lever, it receives food pallets.
Neurotransmitters would continue to bind and rebind with the postsynaptic receptors, which would continue induction of a signal in the postsynaptic neurons, which would repropagate the initial signal.
The case in drugs that block reuptake transporters (such as in serotonin reuptake inhibitor and norepinephrine reuptake inhibitor antidepressants, and dopamine reuptake inhibition found with cocaine and methylphenidate).