Classify the following pairs of goods and services as substitutes in production, complements in production, or neither.

Question:

Classify the following pairs of goods and services as substitutes in production, complements in production, or neither.
a. Bottled water and health club memberships
b. French fries and baked potatoes
c. Leather purses and leather shoes
d. Hybrids and SUVs
e. Diet coke and regular coke