Given only the following excerpt of an E$-$R model:

Which of the following is known to be true?

Question $4$ options:

There are more instances of ENTITY A than there are instances of ENTITY B in the user's environment.

A single instance of ENTITY B may be related to many instances of ENTITY A$.$

A single instance of ENTITY A must be related to many instances of ENTITY B$.$

ENTITY A has a minimum cardinality of one.