Individual differences in the initial sensitivity to a drug's effects are thought to be determined by __________

Reuptake refers to

a. a neurotransmitter being released at the synaptic cleft. b. a neuron reabsorbing a neurotransmitter after it is released. c. a neurotransmitter attaching to a receptor cell. d. a neurotransmitter being broken down at the synaptic cleft.

While watching TV, you see a commercial for a new drug, Curolex, which cures 93% of cancer patients. But when you check Curolex out on Google Scholar, you can't find any research on its effectiveness. You are surprised by this because Curolex seems to be too good to be true, and the lack of convincing evidence makes you suspicious. When thinking about Curolex, you have used which of the six principles of scientific thinking?

a. Occam's razor b. Extraordinary claims c. Replicability d. Falsifiability