Some of the people in the nineteenth century in India encountered far more intense opposition [u]against their struggle for social legitimacy than[/u] the organized social upheavals of most other periods.
A. against their struggle for social legitimacy than
B. in their struggle for social legitimacy as did
C. against their struggle for social legitimacy than
D. in their struggle for social legitimacy than did
E. when they struggled for social legitimacy than has

Please elaborate.