Though laypeople often refer to the panda as a bear,
due to its physical resemblance to one, DNA testing has shown that it is more closely related to the common raccoon than any member of the bear family.
A) due to its physical resemblance to one, DNA testing has shown that it is more closely related to the common raccoon than
B) due to the fact that it physically resembles one, DNA testing showed that it is more closely related to the common raccoon than is
C) because of its physical resemblance to one, DNA testing has shown that it is more closely related to the common raccoon than
D) because of its resemblance to one physically, DNA testing has shown that it is more closely related to the common raccoon than is
E) because of its physical resemblance to one, DNA testing has shown that it is more closely related to the common raccoon than to
Usage of "due to" in A and B is incorrect.
We need a sentence which can say - more closely related ===> than to
Only E gives us that option.
Hence, Answer is E