$($b$)$ This approach is considered more of an art than a science.

qualitative

quantitative

$($c$)$ This approach is best suited to solve relatively simple problems, and could be informed by prior experience.

qualitative

quantitative

$($d$)$ This approach is best suited to solve complex problems, and relies heavily on available data.

qualitative

quantitative

$($e$)$ A manager can increase his or her decision$-$making effectiveness by studying and applying this approach. qualitative

quantitative

$($f$)$ An experienced manager will employ this approach to optimize business decisions and processes. qualitative

quantitative