Fireworks twinkle bright colors when reacts with oxygen

Fireworks twinkle bright colors when gunpowder and "stars" reacts with oxygen. (These stars hold fuel, an oxidizing agent, a binder and metal salts or metal oxides) [This information is found at https://www.livescience.com/32675-how-do-fireworks-get-their-colors.html if you'd like to go read more] :)

answer; i believe the correct answer is ( proteins );

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah