Answer: (C) Decline
Explanation:
The decline stage is one of the type of last stage in the product life cycle as it basically representing the actual behavior of the product in the market which results in the form of negative growth.
The decline stage basically demonstrating about the decrease sales and also the profit of the products in an organization.
According to the given scenario, the television western is one of the type of category that entering into the decline stage due to the change in the taste of the customers.
Therefore, Option (C) is correct answer.