"La deficiencia de ácido nicotínico ocasiona:"
	A: "Beri-beri" (There is no proper translation for the word "Beri-beri" as it is a medical condition caused by a deficiency in vitamin B1).
	B: "Pellagra"
	C: "Ceguera nocturna"
	D: "Anemia perniciosa"
	
"Pellagra"