Alvin weeded the garden in 2 3/10 hours and watered the plants in 1 7/10 hours. How much longer did he spend weeding the garden than watering the plants? *

a. Alvin spend 7/10 hour weeding in the garden than watering plants.
b. Alvin spend 3/5 hour weeding in the garden than watering plants.
c. Alvin spend 1 hour weeding in the garden than watering plants.
d. Alvin spend 2 hours weeding in the garden than watering plants.