What is the content of Uttaradhyana Sutra?

Code of conduct for monks

The correct answer is Option 2: Code of conduct for monks

Uttaradhyana Sutra contains teachings of Mahavir that prescribe the code of conduct that monks should follow.

Uttaradhyana Sutra contains the teachings of Mahavir that prescribe the code of conduct that monks should follow and Sangrahini Sutra is a cosmological text composed in the twelfth century that comprises concepts about the structure of the universe and mapping of space.