Refer to the table given below and choose the correct option.

Correct option is C

The correct option is (c) X-Vitamin D; Y - Vitamin C; Z - Beri Beri; W - Pellagra.
Vitamin D deficiency leads to rickets, a condition characterized by soft and weakened bones. Scurvy is caused by a lack of Vitamin C and is marked by symptoms like bleeding gums and bruising. Beri Beri is a disease caused by a deficiency of Vitamin B1 (thiamine), and Pellagra is caused by a deficiency of Vitamin B3 (niacin). These matchings correctly correspond to the diseases listed in the question.