To answer this question, the user needs to be familiar with Mahatma Gandhi's philosophy and his principles.

Gandhiji considered Ahimsa (non-violence) and truth as his two lungs, which means that both of these principles were essential to him and that he could not practice one without the other.

Now, let's go through each option and explain why it is right or wrong:

A. Ahimsa and peace: This option is incorrect. While peace was an important principle for Gandhiji, it was not one of the two lungs he referred to.

B. Truth and Peace: This option is incorrect. While truth and peace were both important principles for Gandhiji, they were not the two lungs he referred to.

C. Ahimsa and truth: This option is correct. Gandhiji considered Ahimsa and truth as his two lungs. Both of these principles were essential to him, and he believed that they were inseparable.

D. Brahamcharya and Aparigriha: This option is incorrect. While Brahamcharya (celibacy) and Aparigriha (non-possession) were important to Gandhiji, they were not the two lungs he referred to.

The Answer is: C