Step 1: Understanding the Concept:
Tembotrione is a herbicide.
It is registered for use in specific crops.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the registration of tembotrione.
Step 3: Detailed Explanation:
Tembotrione has been registered in India for use in maize.
It is a post-emergence herbicide for broad-spectrum weed control.
It is not registered for sorghum, pearlmillet, or soybean.
Thus, it is used in maize.
Step 4: Final Answer:
Tembotrione is registered for use in maize.
Hence, the correct option is (B).