Answer : Option A) Water = 4.19 J/g.°C
Explanation :
According to the given option the coolest location for Vicente will be the pool. As higher is the value of the specific heat of the item/material lower will be the heating rate of that item/material.
So, when comparing the given options, water seems to be higher in specific heat compared to others. This clearly indicates that it will be the coolest location for Vicente to spend his afternoon.