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Abhijeet Gaurav Best Answer
Correct Answer is option (C). The Ti plasmid is a member of the RepABC plasmid family found in Alphaproteobacteria.These plasmids are often relatively large in size, ranging from 100kbp to 2Mbp. They are also often termed replicons, as their replication begins at a single site. Members of this family have a characteristic repABC gene cassette. Another notable member of this family is the root inducing (Ri) plasmid carried by A. rhizogenes, which causes another plant disease known as hairy root disease. A. rhizogenes do have Ri Plasmid instead of Ti Plasmid in them. Hairy Root Inducing Plasmid that causes Hairy Root disease . Other options are all correct Match.