Which one of the following National Parks lies completely in the temperate alpine zone?

Explicitly places Manas among features of the Brahmaputra Plain (alongside Kaziranga), implying a lowland/riverine plain location rather than high mountain terrain.

A student can check a map or elevation data for the Brahmaputra Plain/Manas to compare its typical lowland elevations with alpine/temperate elevation bands given below.

Gives explicit altitudinal bands for Himalayan vegetation: subtropical up to ~1525 m, temperate 1525–3650 m, alpine 3650–4575 m.

Compare Manas' elevation (from maps or gazetteers) to these bands to see if it falls within temperate or alpine ranges.

States alpine and sub‑alpine forests occur along the Himalayas at altitudes ~2500–3500 m (and alpine pastures above ~3500 m), giving another set of elevation thresholds for alpine zones.

Use these altitude thresholds against Manas' known elevations to infer whether it could be alpine/temperate.

Describes vertical zonation of the Himalayas: temperate broad‑leaved in Lesser Himalayas, temperate coniferous around 3500 m, alpine pastures around 4500 m, showing alpine is high elevation.

A student can note alpine corresponds to high Himalayan elevations and thus question alpine classification for a park in the Brahmaputra plain.

Defines alpine tundra as 'above the timberline' and notes it occurs at high elevation in the Himalayas, linking alpine to zones above tree growth limits.

Check whether Manas' environment is above timberline or has alpine tundra vegetation to assess the claim.