The main reason that the royal society of london developed the modern form of peer review was to: award grant funding. decide on promotions for researchers. streamline the publication of conference proceedings. control the quality of published papers.

Control the quality of published papers.

Explanation:

The royal society of London can be described as the leading national organization for the promotion of scientific research in Great Britain.

It is known or considered to be the oldest natural scientific research organization in the world. It is saddled with the responsibility of impacting people's knowledge positively, and that was why they develop modern form of peer review in order to control the quality of published papers.

Thereby allowing the ones that will benefit the readers.