To answer this question, you need to have knowledge about the naval attacks launched on Pakistan's port city of Karachi.
Let's go through each option to understand why it is correct or incorrect:
Option A) Operation Trident II - This option is incorrect because Operation Trident II was not the codename for the naval attack on Karachi.
Option B) Operation Trident Extension - This option is incorrect because Operation Trident Extension was not the codename for the naval attack on Karachi.
Option C) Operation Cactus - This option is incorrect because Operation Cactus was the codename for the Indian military operation to counter a coup attempt in the Maldives in 1988, and not for the naval attack on Karachi.
Option D) Operation Python - This option is correct because Operation Python was the codename given to the naval attack launched on Pakistan's port city of Karachi.
The correct answer is D) Operation Python. This option is correct because it accurately represents the codename for the naval attack on Karachi.