One of the key disadvantages of buying fitness equipment is . A. privacy B. flexibility C. maintenance D. choice Please select the best answer from the choices provided. A B C D

Explanation:

I personally believe one key disadvantages is the cost of maintaining the equipment unlike the gym where you have to subscribe for the month or the year and forget about anything, owning the gym equipment comes with the extra cost and responsibilities of maintenance to the owners.

snell's law

refractve index = sin incidence / sin refraction