Asa Gray, the respected nineteenth-century botanist, explored the West with John Torrey and worked on the revision of Linnaeus’s taxonomic methods, basing the new classifications on a plant’s fruit anatomy rather than the shape of its leaf.
Intended Meaning :
Botanist explored X and worked
to change X using plant's fruit anatomy rather than the shape of its leaf.
Error Analysis :
In Option A the intended meaning is not clear .
worked on revision of X .. sound like he is re-reading . The intended meaning to change X comes only with the use of worked to revise .
A.
on the revision of Linnaeus’s taxonomic methods, basing the new classifications on a plant’s fruit anatomy rather than the shape of its leaf
Wrong for the above stated error.
B. on revising Linnaeus’s taxonomic methods, basing the new classifications on the anatomy of a plant’s fruit rather than the shape of the leaves -- meaning error as mentioned above
C.
to revise the taxonomic methods of Linnaeus, basing the new classification system on the anatomy of a plant’s fruit rather than on the shape of its leaf ---Correct
here the use of " to revise " gives the intended meaning .
use of "basing the new classification" is an action modifier stating how aspects of the change. D. to revise the taxonomic methods of Linnaeus, and to base the new classification system on the anatomy of the plant’s fruit rather than on the leaf’s shape .--
Trying to make " to revise " and "to base the new classification " parallel changes the intended meaning .
E. on the revision of the taxonomic methods of Linnaeus, in which he based the new classification system on a plant’s fruit anatomy rather than on the shape of its leaf..Wrong ..It is more passive with the use of " in which he based on "
When we compare this option with C . C conveys meaning clearly.
Kudos please …. if helpful