The correct option is B 810 m
When comparing two unlike fractions, we need to convert the unlike fractions to like fractions and then compare the numerators.
Since all the fractions in the options have 10 in the denominator, let's calculate the equivalent.
The equivalent fraction of 35 with 10 as the denominator.
3×25×2=610 m
Here, 810>610>410>110
Out of the given options, only 810 m is greater than the 610 m.
Hence, 810 could be the possible length of the rope.