The formula for the time it takes to travel a distance of d at an average speed v is d/v

Tessa ran a 100-meter dash at a speed of about 7.5 meters per second.
What calculation will give us the estimated duration Tessas dash in seconds?

A.) 7.5/100

B.) 100/7.5

C.) 7.5/100•60

D.) 100•60/7.5