Individuals who have difficulty using a tool for anything other than its proper use may have difficulty solving a problem due to a. experiencing mental set b. imposing unnecessary constraints c. experiencing functional fixedness d. focusing on irrelevant information

Explanation:

We refer to functional fixedness when the person can only see one function for each object and cannot use it for more than one task.

An example would be not being able to use a container as a shelf or a hammer as a paperweight instead of just hammering.

a.) is the correct answer.

explanation:

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.