GMAT tests us on "thinking words." These are words that indicate some sort of mental process, such as believe, belief, idea, theory, notion, concept, etc. Please note that both verbs and nouns can be considered "thinking words." GMAT typically likes to follow these words with that and a sentencehardik.jadeja wrote:"Theory of" and "Theory that" both are correct.pradeepkaushal9518 wrote:THEORY ALWAYS TAKES "THAT". HENCE C IS CORRECT
Eg: The general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1915.
The difference is..
"Theory of" must be followed by a noun or a noun phrase.
"Theory that" must be followed by a clause. To be specific, the correct structure is - theory + relative clause with pronoun "that"
As you can see, option A is using neither a noun nor a noun phrase following "theory of".
Option B, correctly uses a noun "a set of indivisible particles", but "a set of indivisible particles that makes up all matter" changes the meaning of the sentence. It seems like we are talking about a subset of indivisible particles.
Option C correctly follows the structure - - theory + relative clause with pronoun "that". In option C relative clause is "that a set of indivisible particles makes up all matter"
Hope that helps..
On GMAT its better to say
Lucise's belief that the Earth is flat was easily accepted
Therefore, as far as GMAT goes, Pradeep's Logic is correct.
