BMI stands for "Body Mass Index" or option C. BMI is basically a way to tell a person if he or she is underweight, normal weight, or overweight. In order to calculate BMI you need the persons height and weight and use the formula. Which involves exponents and dividing the persons mass and weight to tell if that person is overweight.
let her wait because if u tell her ur sister is going to be in huge trouble if i was u just keep ur mouth shut and dont say a word to ur mother about this
