Explanation:

- Statement I: The Rashtriya Gokul Mission is significant for the upliftment of rural poor because many small and marginal farmers, as well as landless laborers, rely on low-producing indigenous animals. These small-scale farmers benefit from improved breeding practices and conservation of these indigenous breeds to enhance productivity, which in turn supports their livelihoods.

- Statement II: The mission was launched to promote the rearing and conservation of indigenous cattle and buffaloes through scientific and holistic approaches. This involves improving their genetic traits, enhancing milk productivity, and ensuring the preservation of native breeds.

- Option 1: I only - This option is incorrect because Statement II is also accurate.

- Option 2: II only - This option is incorrect because Statement I is true as well.

- Option 3: Both I and II - This option is correct as both statements provide accurate information regarding the mission.

- Option 4: Neither I nor II - This option is incorrect as both statements accurately describe elements of the Rashtriya Gokul Mission.

Correct Answer: Option 3 - Both I and II