A recent survey of $1200$ executives in a certain country indicated that artificial intelligence $($Al$)$ is no longer seen as a side project. Seventy$-$nine percent of executives think Al will significantly change the way they will do business in the next five years. At the same time, these executives are concerned about Al risks that could undermine investments. What risks concern executives most? Forty$-$five percent cite new privacy threats. But executives also note growing concerns over how Al could affect cybersecurity, employment, inequality, and the environment. Almost all of executives are already taking steps to address these concerns by developing and deploying Al systems that are trustworthy. Complete parts $($a$)$ through $($d$).$

a$.$ Describe the population of interest.

A$.$ all executives in the country

B$.$ all executives

C$.$ companies from the country

D$.$ all companies

E$.$ companies from the country that use Al