Which are the diagnostic symptoms of sorghum shoot fly?

Correct option is C

Sorghum shoot fly (Atherigona soccata) is a significant pest that infests sorghum crops. The diagnostic symptom associated with sorghum shoot fly is that the larvae cut the growing points of the plant, leading to a condition known as "dead heart." This occurs when the central shoot is damaged or killed by the feeding activity of the larvae, resulting in the wilting of the affected shoot, resembling a dead heart.