Match column I with Column II

	Column I		Column II
a.	Hugo de Vries	i.	Linkage in Drosophila
b.	Sutton and Boveri	ii.	Mutations in Oenothera lamarckiana
c.	Mendel	iii.	Experiments on Pisum sativum
d.	Morgan	iv.	Chromosomal theory of inheritance

• A

  a-ii, b-iv, c-iii, d-i

• B

  a- iv, b-ii, c-iii, d-i

• C

  a- iv, b-i, c-iii, d-ii

• D

  a- i, b-ii, c-iii, d-iv