Final answer:
The increase in interest in fitness during the 1980s is true, leading to a higher demand for activewear due to the fitness craze and health consciousness of the era.
Step-by-step explanation:
The statement that interest in fitness increased, creating a demand for more clothing for active sports in the 1980s is historically accurate. This period experienced a surge in health and fitness awareness, which contributed to the growth in the popularity of aerobics, jogging, and gym-going. Activewear, including items such as leg warmers, leotards, and track suits, became more popular as fashion statements both in and out of the gym. This fitness craze was propelled by several factors, including the rise of fitness icons, increased health consciousness, and the availability of more leisure time for certain demographics.