The biological adaptation that allows frogs to obtain water for their survival during conditions of water scarcity is the

Options

1. Apresence of modified tongue that acts like a sponge to suck water from damp soils.
2. Bpresence of water channels in the skin by which they absorb water from their surroundings.
3. Cpresence of ciliated oesophagus that helps in separating water from ingested particulate matter.
4. Dselective feeding on plants with large amount of water that would fulfill the water requirement.