Question

these clubs became popular in the 1970s and 1980s, operate on a for - profit basis, and charge a monthly membership fee.
athletic clubs
proprietary clubs
fraternal clubs
country clubs

Explanation:

• Athletic clubs: Focus on physical activities and fitness. While they can be for - profit and charge membership fees, the time frame (1970s - 1980s) is not as distinctively associated with them as a key characteristic compared to proprietary clubs.
• Proprietary clubs: These clubs became popular in the 1970s and 1980s, operate on a for - profit basis, and charge a monthly membership fee. This matches the description in the text.
• Fraternal clubs: Typically have a social or service - oriented purpose (like lodges) and are often non - profit or have a different membership model.
• Country clubs: Usually offer a range of amenities (golf, dining etc.) and have higher - end memberships. Their popularity peak is not as specifically tied to the 1970s - 1980s as a defining characteristic in the way described.

Answer:

B. Proprietary clubs