SAT Question 7270d642: Ratios Rates Proportional Relationships And Units answer and explanation with Desmos solution

Choice A is correct. It's given that a certain bird species can fly at an average speed of $16$ meters per second when in continuous flight. At this rate, in $4$ seconds this bird species would fly $\left(\frac{16\text{meters}}{\text{second}}\right)\left(4\text{seconds}\right)$, or $64$ meters.