B im sure its b bc i had this question
Answer:
Light therapy—or phototherapy, classically referred to as heliotherapy—consists either of exposure to daylight or some equivalent form of light as a treatment for seasonal affective disorder, or exposure of the skin to specific wavelengths of light using polychromatic polarised light to treat a skin conditioncondition
I think it is helpful to you
D bc it’s the right answer
Allow and prohibit hope this answers it for ya
