Eva generally makes a list of things to be bought before going for grocery shopping on weekends. however, last weekend she picked up some items that were not there in her list as she realized that she needed these items when she saw them on display in the store. this activity of purchasing the items that were not in the list is an example of

The correct answer is: unplanned shopping.

Explanation:

Unplanned shopping is the activity of purchasing articles that were not originally part of a list. It takes place when new needs arise suddenly or when the person in charge of the purchase did not realize the lack of the products that should be acquired.

a) both were commissioned explorers

answer; by looking at total product,marginal product,and changes in both after changes in inputs