Examine the following statements withe reference to interior of the earth:

1. The lithosphere consists of the crust and the uppermost core and rigid portion of the mantle.

2. Below the lithosphere is the asthenosphere which is a thin, hot and slowly flowing layer of upper mantle.

3. Mesosphere is the rigid middle and lower mantle extending upto the core of the earth.

4. The mesosphere and the asthenosphere have different physical but similar chemical properties.

Find out the correct combination by using the folowing codes.