As we move across the Himalayan landscape, the physical and biological structure of the community changes. Arrange the following tree types found across the Altitude gradient of Himalayas from Foothill regions (<500 meters, above sea level) towards higher regions. Choose the correct answer from the options given below :

Moving up the Himalayan slopes, forest types change in a clear band from the foothills to the high ridges.

Deciduous forests occupy the warm foothill regions below about five hundred metres.

Wet temperate forests come next as rainfall and elevation increase.

Chir pine grows on the drier subtropical to lower temperate slopes above them.

Blue pine takes over at higher temperate elevations.

Silver fir forms the highest of these belts near the subalpine zone.