which of the following is a property of niacin?

which of the following is a property of niacin?

a- it is susceptible to destruction in foods exposed to light

b- it participates primarily in reactions involving amino acids

c- it is soluble in both water and lipids depending upon its chemical form

d- it can be synthesized in the body from the amino acid called tryptophan

e- it can be synthesized in the body from the amino acid methionine.