Which one of the following should be avoided by the patrolling party w

Which one of the following should be avoided by the patrolling party while patrolling in an extremist affected area?

Use the 'Kacha' established road instead of making cross-country
Watch out for any mine or look on the road as it may be linked to IED
Maintain a proper distance between front and rear of the patrolling party
While walking in formation, keep your own position in mind
This question was previously asked in
UPSC CISF-AC-EXE – 2019
Using the ‘Kacha’ established road instead of making cross-country should be avoided if possible, or done with extreme caution, as established roads are often used by extremists for ambushes or planting Improvised Explosive Devices (IEDs).
Established routes, especially unpaved (Kacha) roads, are predictable lines of movement and thus pose a higher risk of ambush or IEDs in extremist-affected areas.
While using established roads can be faster, patrolling parties in high-risk areas often vary their routes, use cross-country movement where feasible and tactically sound, and maintain strict vigilance for signs of tampering, mines, or IEDs on any path they use. Maintaining proper distance between elements and situational awareness within the formation are standard and necessary patrolling practices.