The phrase ‘hot dilute soup’, was used by

The phrase ‘hot dilute soup’ was used by Haldane in context when he was referring to the formation of the complex compounds on the earth. According to him, during cooling of the earth, simple organic compounds combined with each other to give rise to complex compounds and this formation and collection of complex compounds in sea water had converted the sea water into a hot dilute soup.

On the other hand Oparin had not used such a phrase but had worked on how life was originated on earth, Pasteur never gave any such concept regarding formation of complex compounds and had told that life arises from pre-existing life, Darwin had gave the concept of natural selection and had never used the phrase ‘hot dilute soup’.

Therefore, correct option is (c) Haldane.