The correct options are
C Cold War was an ideological conflict with no instances of military escalations between the rival blocs.
D India followed a negative and passive policy during the Cold War.
The rival blocs during the Cold War were expected to behave rationally and responsibly to prevent direct war. However, there were some military escalations and wars during this era like the Korean war and the Vietnam war. NAM started during the Cold war and as a leader of NAM, India's response was neither negative nor passive. India was in favour of actively intervening in world affairs to soften Cold War rivalries.