A. the tendency tosee an items only in terms of its most common use. b. continued use of problem-solving strategies that have worked in the past. c. arriving at a particularly insightful solution to a problem. d. focusing on information that is irrelevant to the solution of the problem.

c. the tendency to see an item only in terms of its most common use.

Explanation:

Functional fixedness refers to the tendency to see an item only in terms of its most common use.  It is a cognitive bias that makes an individual use a thing only in the traditional way it was meant to be used even though there are other uses it could be put into.

abu bakr, was a senior companion and—through his daughter aisha—a father-in-law of the islamic prophet muhammad. abu bakr became the first openly declared muslim outside muhammad's family. abu bakr served as a trusted advisor to muhammad.