The statement that best critiques the argument that the Indian Rebellion of 1857 caused the birth of Indian nationalism is:
"India saw a wide variety of responses to the rebellion including some groups allying with the British."
This response highlights the lack of a unified nationalistic movement in response to the rebellion, as not all groups opposed British rule and some even collaborated with the British, indicating that the rebellion did not necessarily lead to a cohesive sense of nationalism across diverse Indian society.