(i) damage to the immune system

(ii) damage to lungs

(iii) skin cancer

(iv) peptic ulcers

(a) (i) and (ii)

(b) (ii) and (iv)

(c) (i) and (iii)

(d) (iii) and (iv)

Correct option – ( c )

Explanation for correct option – excessive exposure to UV – rays can damage DNA and would likely cause skin cancers which can be malignant also like malignant melanoma . It also causes premature aging of the skin leading to freckles and wrinkles on the skin . Exposure can also damage the immune system of the human beings making them prone to be affected by numerous diseases .

Hence correct option is damage to the immune system and skin cancer