What does this ""pressure"" represent for McTaggart?

showing or having an insensitive and cruel disregard for others. (so basically being heartless)

hope this : )

a constant variable, normally called a controlled variable, is the term for a variable that remains constant throughout an experiment, though other variables may change. an example is the water pressure for a faucet when measuring the amount of water released when the faucet is opened to various increments.

the right answer is b

it is a