Wesley is а 22-yeаr-оld whо presents fоr аn employment physical. He tells you he recently quit smoking and is using "Juul", a popular nicotine containing e-cigarette as a means to quit nicotine completely. He has been using the menthol containing product and tells you it is "...so much healthier for me. They only use the highest quality of ingredients." Which statements are true regarding e-cigarettes? Select all that apply.