Which of the following microbes transform normal plant and animal cells to cancerous cells respectively?

Agrobacterium tumefaciens and Retrovirus.

Retroviruses in animals have the ability to transform normal cells into cancerous cells. Agrobacterium tumefaciens, a pathogen of several dicot plants is able to deliver a piece of DNA known as 'T-DNA' to transform normal plant cells into tumor and direct these cells to produce the chemicals required by pathogen.