How can seasonal fluctuations impact an industry?

a$.$

When the temperature becomes warmer it is harder to motivate employees to work indoors

b$.$

When the temperature becomes cooler fewer resources are expended to keep manufacturing facilities cool

c$.$

When the temperature becomes warmer it is more difficult to find different kinds of materials for a range of products

d$.$

When the temperature becomes cooler more advertising dollars are spent to promote warm$-$weather destinations

e$.$

When the temperature becomes warmer it is harder to keep machines cool when manufacturing clothing