A. Rust of wheat
A.
B. Yellow vein mosaic of bhindi
B.
C. Wilt of tomato
C.
D. Powdery mildew
D.
Correct Answer: B
সঠিক উত্তর: B
Explanation
ব্যাখ্যা
Yellow vein mosaic of bhindi is a viral disease transmitted by whiteflies, affecting okra plants. The virus causes characteristic yellowing and mottling of the leaves, stunting of the plant, and reduced yield.