This sentence is about what is essential for a healthy lifestyle. The blank should be filled with a word that relates to something that needs to be balanced for health.
Step 1: Understand the sentence
The phrase says, "It is important to have a balanced ........... for a healthy lifestyle.'' The word after "balanced'' should be something that can be balanced and is related to health.
Step 2: Analyze the options
- (A) Diet: This means the kinds of food a person eats regularly. A balanced diet means eating the right kinds and amounts of food to stay healthy. This fits perfectly here.
- (B) Exercise: Physical activity is important, but we don't usually say "a balanced exercise.'' Exercise is something you do regularly but not something you balance in the same way as diet.
- (C) Routine: A routine is a regular way of doing things. Although you can have a balanced routine, it is less specific than diet in the context of a healthy lifestyle.
- (D) Regimen: This means a prescribed course of medical treatment or diet or exercise. It could work but is a more formal or technical term, and not as commonly used as "diet'' in everyday language.
Step 3: Choose the best option
Option (A) "Diet'' is the most common and appropriate choice to express the importance of balanced food intake for health.
Conclusion:
Therefore, the correct answer is (A) Diet.