The correct option is B P - ii, Q - iii , R - i
Darwin proposed the theory of natural selection. He said that in nature there is always a struggle or competition for existence. These struggles can lead to the development of variations among the offsprings. The process of natural selection and inheritance of useful variations over many generations leads to the formation of new species.
Jean Baptiste Lamarck proposed the theory of inheritance of acquired characters. In this theory, he stated that the characters acquired by an individual in its lifetime will be inherited to the next generations. If this process continues then after many generations, these acquired characters are accumulated and lead to the development of a new species.
Theory of special creation was proposed by Father Suarez. He proposed that living organisms that we see today were created as such by superpower. Diversity was always the same since creation and will be the same in future.
So, the correct option is 'b'.