Option 1 states that a person was detained by security forces while going to cast their vote in a parliamentary election. This is a clear violation of human rights because every citizen has the right to participate in the political process and exercise their right to vote freely. In this case, the individual was deprived of this right by being detained, which is a violation of their human rights.

Option 2 states that a civilian was killed by the army during a combing operation. This is also a violation of human rights, as every person has the right to life and should not be unlawfully killed by any authority. In this situation, the army`s actions resulted in the loss of life of a civilian, which is a clear violation of their human rights.

Therefore, both option 1 and option 2 are instances of the violation of human rights. The correct answer is option 3, which states "Both 1 and 2."