Defection is quite common in our present day political life.

The correct answer is: C. disloyalty

Defection is the act of leaving one's party or cause and joining another. It is often seen as a sign of disloyalty, as it indicates that the defector no longer believes in the principles of the party or cause they are leaving.

Desertion is the act of abandoning one's post or duty without permission. It is a serious offense in the military, as it can put the lives of others at risk.

Disobedience is the act of refusing to obey orders or rules. It can be seen as a sign of disrespect or defiance.

Indiscipline is the lack of discipline or self-control. It can lead to problems such as tardiness, absenteeism, and poor performance.

In the context of political life, defection is often seen as a sign of instability and weakness. It can also lead to a loss of public trust in the government.