1. A farmer is monitoring the water content of the soil during a dry summer.The water content of the soil is decreasing at a rate of 2.5% per week. Ifa certain soil sample contains 200 grams of water on July 1st, whichequation describes the relationship between y, amount of water in grams,and t, time in weeks after July 1st?A y = 200(0.75)'B. y = 200(0.975)C. y = 200 -0.0251D= 200 -0.251