Which of the following is true regarding selecting activities for a complete fitness program? cardiorespiratory endurance activities are the most important, muscular strength activities are the most important , flexibility activities are the most important, or it is best to include exercises for each component of fitness

a. Supply chain leverage is about the same for all industries.

b. Supply chain savings exert more leverage as the firm's purchases are a smaller percent of sales.

c. Supply chain savings exert more leverage as the firm has a lower net profit margin.

d. Supply chain leverage depends only upon the percent of sales spent in the supply chain.

e. none of these is true.