Who is bored i am what about u all

(i think the answer is either b or d can someone me? i’ll mark you brainliest) signs tell you what you can or can't do, and what you must do. a. regulatory b. warning c. guide d. construction

Disinfection of countertops, metal, and hard plastics is not best accomplished by the use of because it's very corrosive to hard surfaces. a. alcohol b. a glutaraldehyde solution c. an ultrasonic cleaner d. a phenol compound

In what way can the government and health organizations provide health protection to people? a. by building recreation centers in different localities b. by educating people about the benefits of nutritious food c. by treating the water supply so it is germ-free