Explain the term radioactivity

Which sentences are punctuated correctly? check all that apply.andrew's favorite vegetables are: cucumbers, green beans, and red peppers.darren told me about his travels to different tropical islands: hawaii, puerto rico, and jamaica.there were several activities to choose from at the resort: snorkeling, swimming, and hiking.samantha enjoyed many types of music, jazz, classical, hip hop, country, and heavy metal.on my way to the movies, i had to pick up: roger, miguel, kimberly, and bev.