The fission of  can occur via many different reactions. In general, they can be written as follows:

where X and Y refer to the identities of the fission fragments and η is the number of neutrons produced. Which one or more of the following statements are true?

A. The compound nucleus that is formed to initiate the fission process is the same, no matter what X and Y refer to.

B. The greater the number h of neutrons produced by the reaction, the smaller is the sum of the nucleon numbers A_X and A_Y.

C. The sum of the atomic numbers Z_X and Z_Y is the same, no matter what X and Y refer to.

(a) A

(b) A and B

(c) A and C

(d) B and C

(e) A, B, and C

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