Hello My Dear enemies of Gmat . If u really want to beat the Gmat, beat this question first.
. I will post the answer later
Constructed with the finest italian marble ,the floor of the church is its greatest attraction and is more attractive to tourists than are its ornate stained-glass windows.

a. attraction and is more attractive to tourists than are its ornate
stained-glass windows
b . attraction, itself more attractive to tourists than are its ornate
stained-glass windows
c. attraction, itself more attractive to tourists as are its ornate
stained-glass windows
d. attraction, being more attractive to tourists than its ornate
stained-glass windows are
e . attraction as it more is attractive to tourists than are the church's
stained-glass windows