Question : Given below are four sentences, three of which, are jumbled. Pick the option that gives the correct order.

A. It was originally commissioned by the emperor Ashoka in the 3rd century BCE.
B. The brick structure was crowned by the chhatri, a parasol-like structure symbolising high rank, which was intended to honour and shelter the relics.
C. The Great Stupa at Sanchi is one of the oldest stone structures in India, and an important monument of Indian architecture.
D. Its nucleus was a simple hemispherical brick structure built over the relics of the Buddha.

Option 1: CDAB

Option 2: CBAD

Option 3: CADB

Option 4: CBDA