I think it’s B I’m not for sure
One is were you bang someone else to reproduce and the other is where you bang yourself to reproduce
Answer:
All viruses that spread within their host tissues (systemically) can be transmitted by grafting branches or buds from diseased plants on healthy plants. Natural grafting and transmission are possible by root grafts and with parasitic dodder (Cuscuta species). Vegetative propagation often spreads plant viruses.
Explanation: