Mendel selected garden peas as his experimental material because
(i) Pea plants possess a number of well defined contrasting characters.
(ii) Pea plants contain unisexual flowers.
(iii) Pea plants have perfect **** flowers.
(iv) These are annual plants.
(A) (i) and (iv) only
(B) (i) and (ii) only
(C) (i) and (iii) only
(D) (i), (iii) and (iv) only
