Adrenaline can start working when a person is A
excited or happy
B
nervous or shy.
с
calm or relaxed.
D
scared or mad.

. a function is a relation in which each input has only one output. in the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.

answer is b "guaranteed the safety of any merchant"

just took the test!