I really don't know, can someone help me?

Question

Which of the following statements would be accepted as a valid criticism of the big bang theory in scientific circles?
A. It cannot be tested directly.

B. It fails to state the original cause.

C. It is supported by large amounts of evidence.

D. It is merely an educated guess.

Answer 1

I would say (B), because it leaves us with the unanswered question:  What caused the big bang?

 

(A) is technically true, but observation of the red shift in receding galaxies is a strong experimental indicator that all the galaxies emerged from the same point, especially with increasing red shift at greater distances.  So while true, (A) does not really answer the question.  In addition, there is the observational evidence of the isotropic cosmic microwave background, the "afterglow" of the big bang, so to speak.

 

(B) is a fact, as stated above.  The big bang would be the first effect, but not the first cause, assuming an effect must be preceded by its cause (this gets into philosophy and outside of physics).

 

(C) is a fact, but it does not answer the question.

 

(D) is incorrect in the sense that the big bang is more than an educated guess, it is a reasonable explanation arrived at after examining observational data from modern astronomy.

 

What is the "book" answer?  I think we already had a strange book answer about blackbody radiation a few days ago.