Roughly twice each century the planet Venus passes between the earth and the sun, an occasion known as a transit of Venus, during which it makes the outline of the planet visible in stark relief.

(A) during which it makes the outline of the planet visible
(B) during which the outline of the planet becomes
(C) so that it makes the outline of the planet
(D) such that during which the outline of the planet becomes
(E) such that the outline of the planet becomes


OA B

Source: GMAT Prep