Choose the option in which the VOICE in the above sentence has been correctly changed into Passive Voice.
I am going to write a letter.

Correct option is A

Correct passive voice: (a) A letter is going to be written by me.
Key points (highlight):
• “am going to write” shows planned future action (near future intention).
• Passive keeps the same meaning using is/are going to be + V³.
Grammatical Rule (English):
• Active: Subject + am/is/are going to + V¹ + Object
• Passive: Object + am/is/are going to be + V³ + by + Subject
व्याकरणिक नियम (Hindi):
• “going to” वाले वाक्यों का passive: Object + is/are/am going to be + V³ (जैसे: किया जाने वाला है)।
Example:
• Active: She is going to buy a car.
• Passive: A car is going to be bought by her.
Why other options are incorrect:
• (b) “is being written” → Present Continuous (tense/meaning changed).
• (c) “is written” → Simple Present (meaning changed).
• (d) “will be written” → Simple Future (not “going to” structure).
Hence, option (a) is the correct answer.