The simple past (also called past simple, past indefinite) is a verb tense which is used to show that a completed action took place at a specific time in the past. The simple past is also frequently used to talk about past habits and generalizations. The simple past is formed using the verb + ed. Questions are made with did and negative forms are made with did not.
Since, we are talking about an action which has happened in the past, we will be using simple past tense.
Have enjoyed is an example of past perfect tense
Enjoyed is in the simple past tense
will enjoy is in the future tense
enjoying is in the continuous tense
Option B is correct