Teratomas are unusual forms of cancer because they are composed of tissues such as tooth and bone not normally found in the organ in which the tumor appears.
(A) because they are composed of tissues such as tooth and bone
(B) because they are composed of tissues like tooth and bone that are
(C) because they are composed of tissues, like tooth and bone, tissues
(D) in that their composition, tissues such as tooth and bone, is
(E) in that they are composed of tissues such as tooth and bone, tissues
In B and C,
like cannot serve to introduce examples (in this case,
tooth and bone).
To introduce examples, we typically use
such as.
Eliminate B and C.
In A,
not normally found in the organ seems to be modifying
tooth and bone.
The intended meaning is that the TISSUES are not normally found in the organ;
tooth and bone are merely EXAMPLES of these tissues.
Eliminate A.
In D,
tissues is in apposition to
composition.
Nouns in apposition must refer to the EXACT SAME THING, but
tissues is not the same thing as
composition.
Eliminate D.
The correct answer is
E.
Note the following:
The purpose of
in that is to introduce the particular WAY in which something is true.
In the SC above, teratomas are unusual IN ONE PARTICULAR WAY:
IN THAT they are composed of tissues such as tooth and bone.
The distinction between
because and
in that is another reason to eliminate answer choices here.
The relationship expressed by the SC above is not causal.
The composition of teratomas is not CAUSING them to be unusual; the tooth and bone that compose teratomas are simply the WAY in which these forms of cancer are unusual.
Hence, in A, B and C,
because does not convey the intended meaning.
Eliminate A, B and C.
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