(A) 6.022 x 1023
(B) 3.01 x 1023
(C) 2 x NA
(D) 4 x 6.022 x 1023
(A) 6.022 x 1023
(B) 3.01 x 1023
(C) 2 x NA
(D) 4 x 6.022 x 1023
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