Maybe d) school-age children’s learning.
Toddlers should eat 1 cup of fruit per day and children between the ages of 4 and 8 need to have 1 to 1 1/2<span> cups per day. Upper elementary age children and teen girls should eat </span>1 1/2 <span>cups each day.</span>
try drinking a lot of water quickly
The speed is not stable/constant , it`s changing