Answer:
Each of the items have been grouped into Complementary goods and Substitution goods below.
Explanation:
Complementary goods:
A complementary good is a good which is used together with another good. It's use is associated with the use of another good. Examples of complementary goods from the question includes:
1. Cars and gasoline
2. Printers and ink
3. electronic toys and battery
Substitute goods:
Substitute goods are goods that satisfy a common need. It is a good that can be used in place of another good. From the question, examples of substitute goods are:
1. orange juice and grapefruit juice
2. artificial sweeteners and sugar
3. mittens and gloves
