How should Frank divide his time between the east and the west orchard?
a) He should spend all 4 hours in the east orchard.
b) He should spend 3 hours in the east orchard and 1 hour in the west orchard.
c) He should spend 2 hours in east orchard and 2 hours in the west orchard.
d) He should spend 1 hour in the east orchard and 3 hours in the west orchard.