Final answer:
Without the full and clear context of the options provided for the scientific notation expressions, it is not possible to determine which statement is correct. Correct operations with exponents are necessary for evaluating such expressions.
Step-by-step explanation:
The student is asking for assistance with determining which mathematical statement is correct regarding the use of exponents and scientific notation. When comparing scientific notations, it is important to ensure that the operations are performed correctly, especially when multiplying or adding numbers with powers of ten.
To evaluate the correctness of scientific notation expressions, one must follow the exponent rules. For multiplication, you add the exponents when the bases (in this case, 10) are the same. For example, 4.08x10² x 1.95 x 10 = 7.956x10³ (because 2 + 1 = 3). However, without the correct options listed in full and clear context, it is not possible to determine which statement (A, B, C, or D) is correct.
The information provided involves various numbers in scientific notation, but without the proper context or operational signs between the numbers in the statements (A, B, C, D), it is not possible to accurately assess which statement is correct.