A. Fungus and bacteria
A.
B. Virus
B.
C. Bacteria
C.
D. Fungi
D.
Correct Answer: A
সঠিক উত্তর: A
Explanation
ব্যাখ্যা
Tundu disease is a complex interaction between a nematode (Anguina tritici) and a bacterium (Corynebacterium tritici/Clavibacter tritici). The nematode acts as a vector, carrying the bacteria into the wheat plant. This combined infection leads to the characteristic symptoms of Tundu disease.