Explanation:

Introduction:
Going to the theatre is a matter of personal preference, and the correct answer to the given question is option 'D' - Why. This means that the reason for going to the theatre is subjective and varies from person to person.

Reasoning behind the answer:
The question asks about the factors that influence an individual's decision to go to the theatre. Let's analyze each option to understand why option 'D' is the correct answer.

A) How long:
The duration of a theatre performance is not a determining factor for whether or not someone would go to the theatre. Some people may prefer shorter performances, while others may enjoy longer ones. Therefore, the length of the performance does not dictate whether a person would go to the theatre or not.

B) When:
The timing of the theatre performance may be important for some individuals, especially if they have other commitments or if they prefer daytime or evening shows. However, the question is asking about personal preference, not external factors such as scheduling conflicts. Therefore, the timing does not necessarily determine whether a person would go to the theatre or not.

C) How far:
The distance to the theatre may be a factor that influences an individual's decision, as it can be inconvenient or expensive to travel long distances. However, this option does not address personal preference. Some people may be willing to travel far to see a specific performance or visit a renowned theatre, while others may prefer to attend local theatres. Therefore, the distance alone does not determine whether a person would go to the theatre or not.

D) Why:
This option focuses on personal preference, which is the main factor in deciding whether or not to go to the theatre. People have different reasons for attending theatre performances, such as enjoying the art form, appreciating the storytelling, experiencing live performances, or supporting local artists. The decision to go to the theatre ultimately depends on an individual's personal interests, preferences, and motivations.

Conclusion:
The correct answer to the question is option 'D' - Why. Going to the theatre is a matter of personal preference, and the decision is influenced by individual interests, motivations, and reasons for attending theatre performances.