Option 1 states providing girls` toilets in every school in 100 Child Sex Ratio (CSR) districts by the year 2017. This is a monitorable target of the Beti Bachao Beti Padhao Abhiyan because it can be measured and tracked to ensure its completion.

Option 2, the correct answer, states achieving 100 percent girls` enrollment in secondary education by the year 2020. This is not a monitorable target of the Beti Bachao Beti Padhao Abhiyan because it does not specify how the progress or achievement of this target will be measured. Without a clear monitoring mechanism, it becomes difficult to assess the progress and success of this goal.

Option 3 states promoting a protective environment for girl children through the implementation of the Protection of Children from Sexual Offences (POCSO) Act, 2012. This is a monitorable target of the Beti Bachao Beti Padhao Abhiyan because the implementation of the act can be assessed and tracked.

Option 4 states training elected representatives and grassroot functionaries as community champions to mobilize communities to improve CSR and promote girl`s education. This is a monitorable target of the Beti Bachao Beti Padhao Abhi