In the given statement some option is missing which can be described as follows:
A) weak
B) strong
C) optional
D) mandatory
The weak entity is an object, which could not be described specifically by its properties only, It should have a foreign key to create a primary key in comparison to its attributes, and wrong choices can be explained as follows:
In option B, It describes the relationship with the weak entities.
In option C, It describes the relationship, which is not necessary.
In option D, In every case, an entity could be affiliated with another entity, but this is not necessary.