Determine whether each of the following transactions contributes to the calculation of GDP as total spending, then, identify the relevant component of GDP (C, I, G, or NX).

a. Michelin sells tires to Nissan to install on their 2019 Sentras that are produced and sold in the United States.

b. Molly Maid provides house cleaning services across the United States.

c. American consumers import $3.5 billion of woven apparel from Bangladesh.

d. The U.S. government spent $523.1 billion on national defense.

e. Entrepreneur and Shark Tank investor Barbara Corcoran purchases 15% of Cousins Maine Lobster food truck company for $55,000.