Vaccines have been subjected to quite a bit of controversy in recent years. currently, the centers for disease control and prevention (cdc) recommend that healthy people receive a flu vaccine every year.
what are your current perceptions of the flu vaccine? do you think these recommendations are appropriate? explain your reasoning.

the correct answer is option d.

an appositive is a noun, noun phrase or noun clause which follows another noun or noun phrase in order to describe it or name it another way. they are usually used between commas, brackets or dashes.

the example sentence with the correct use of commas is the following:

her uncle, the man over there in the red shirt, owns the hardware store in town.

answer/// to address the needs of adults with mental illness and increase their ability to function;