Question

within a romantic relationship, what is a boundary?
a choice to date one person exclusively
a limit that a person sets about what is or is not okay
an agreement to engage in sexual activity
a threat used to persuade someone to do something

Explanation:

En una relación romántica, un límite es una limitación que una persona establece sobre lo que está bien o mal. No se refiere a la exclusividad de citas, un acuerdo sexual, ni una amenaza.

Answer:

a limit that a person sets about what is or is not okay