jogi1984 wrote:Sunspots, vortices of gas associated with strong
electromagnetic activity, are visible as dark spots on
the surface of the Sun but have never been sighted on
the Sun’s poles or equator.
(A) are visible as dark spots on the surface of the
Sun but have never been sighted on
(B) are visible as dark spots that never have been
sighted on the surface of the Sun
(C) appear on the surface of the Sun as dark spots
although never sighted at
(D) appear as dark spots on the surface of the Sun,
although never having been sighted at
(E) appear as dark spots on the Sun’s surface,
which have never been sighted on
In C and D,
sighted AT the Sun's poles does not convey the intended meaning: it implies that sunspots have never been sighted by anyone located AT the Sun's poles. The intended meaning of the SC is that sunspots have never been sighted ON the Sun's poles. Eliminate C and D.
In B,
dark spots that never have been sighted on the surface of the Sun changes the meaning. The intended meaning is that SUNSPOTS (not dark spots) have never been sighted on THE SUN'S POLE OR EQUATOR (not the surface of the sun). Eliminate B.
In E,
which have refers to
dark spots, implying that dark spots have never been sighted on the Sun's poles or equator. The intended meaning of the SC is that SUNSPOTS have never been sighted on the Sun's poles or equator. Eliminate E.
The correct answer is
A.
Last edited by GMATGuruNY on Fri Sep 16, 2011 8:13 am, edited 1 time in total.
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