$1)$ What SI unit corresponds to electric potential and $2)$ what SI unit corresponds to electric potential energy?

Group of answer choices

$1)$ Joules, $2)$ Watts

$1)$ Joules, $2)$ Volts

$1)$ Volts, $2)$ Joules

$1)$ Volts, $2)$ Watts

$1)$ Watts, $2)$ Volts

$1)$ Watts, $2)$ Joules