You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.

Which plant is grown for food?  
 (A) Rice (B) Tobacco (C) Orchid (D) Cotton
A

If a student gets a chemical splashed into an eye, what is the most appropriate first action to be taken?  
 (A) wipe it with a paper towel (B) call 911 for emergency services (C) have someone go get the school nurse (D) flush the eye with water at an eyewash station
D

Visible light in the electromagnetic spectrum  
 (A) is a broad band within the spectrum. (B) is a narrow band within the spectrum. (C) makes up 50 percent of the spectrum. (D) makes up more than 75 percent of the spectrum.

B