The Earth's atmosphere shields us from most kinds of electromagnetic radiation. The exceptions are O visible light and radio waves
O X-ray and gamma rays
O X-rays and uv rays
O only visible light

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.