(A) Cosimo de' Medici, a great patron of the arts, sponsoring two of Donatello's most famous works, statues of David and Judith, while supporting Brunelleschi to complete the dome of the cathedral of Santa Maria del Fiore, which is known to be
(B) Cosimo de' Medici was a great patron of the arts, sponsoring two of Donatello's most famous works, statues of David and Judith, and supporting Brunelleschi in completing the dome of the cathedral of Santa Maria del Fiore, known as
(C) Cosimo de' Medici, a great patron of the arts, sponsored both of Donatello's most famous works, a statue of David and a statue of Judith, and supporting Brunelleschi when he completed the dome of the cathedral of Santa Maria del Fiore, that is known as
(D) Cosimo de' Medici, a great patron of the arts, sponsoring the most famous two Donatello works, statues of David and Judith, he supported Brunelleschi in completing the dome of the cathedral of Santa Maria del Fiore, known by
(E) Cosimo de' Medici was a great patron of the arts, sponsored both of Donatello most famous works, statues of David and Judith, and he supported Brunelleschi when he completed the dome of the cathedral of Santa Maria del Fiore, known as
The GMAT loves Nested Grammatical Structures --- that is one structure packed inside another. These produce very long sentences, and long SC questions, such as the one above. For a discussion of these structures, as well as the OA & OE for this particular question, see:
https://magoosh.com/gmat/2014/nested-gr ... orrection/
Mike
