Correct option is B
The correct answer is (a) – (iii), (b) – (i), (c) – (ii).
Rust of Wheat
· Mode of Transmission: Air and seed
· The rust fungi can be spread by wind (airborne spores) and also through infected seeds.
Mosaic of Okra
· Mode of Transmission: Insect
· The mosaic virus is commonly transmitted by insects, especially aphids.
Citrus Canker
· Mode of Transmission: Only air
· The bacteria responsible for citrus canker can be spread through the air, particularly via wind-driven rain.