A diver jumps from a cliff into the sea, and the height $h$ (in feet) of the diver above sea level $t$ seconds after jumping is given by the equation $h\left(t\right)=50-16t+4t^2$. Estimate the change in the diver's height over the interval $1\le t\le 1.6$.

• A. $4.8\text{ ft}$
• B. $-4.8\text{ ft}$
• C. $2.4\text{ ft}$
• D. $-2.4\text{ ft}$