A.Many an accident has taken place on this route.
B. Today again, driving enthusiasts wait with bated breath for the Rohtang La to open to take a jaunt to Leh.
C. And yet the beauty of the place and the thrill of adventure beckon many a tourist every year.
D. The landscape remains as beguiling and awe-inspiring as ever.
E. Even 10 years ago, this epic Himalayan journey was a risky endeavor.

E-A-C forms a logical sequence.

'E' talks about the journey being risky. 'A' gives context to E by telling that the route has seen many accidents. 'C' furthers the discussion by saying that tourists go there regardless of the danger.

B-D forms a pair as B talks about the journey from Rohtang La to Leh and D talks about the beauty of the landscape.

The only option which has both these sequences is B.

Hence, the answer is option B.