Im crazy like Psycho crazy:D

Complete the following sentence with the phrase that is grammatically correct public libraries are important because they encourage learning, provide low-cost resources, and o o a. inspire community involvement b. community involvemeling o c. to inspire community involvement o d. inspiring community involvement

Which part of the original work should the adaptation retain

Which underlined word in the sentence is a demonstrative adjective? these brown shoes fit my feet very well.