Plasmid used to construct the first recombinant DNA was isolated from which bacterial species?

Question

$\begin{array}{1 1} \text{a.Escherichia coli} \\ \text{b. Salmonellla typhimurium} \\ \text{c. Agarobacterium tumefaciens} \\ \text{d. Thermus aquaticus} \end{array}$