How would you transform 6.0 x 10² and 4.0 x 10³ to have the same exponent for addition?

• A. Convert both to 6.0 x 10³ and 4.0 x 10³.
• B. Convert 6.0 x 10² to 0.6 x 10³.
• C. Convert both to 60 x 10² and 40 x 10².
• D. Convert 4.0 x 10³ to 40 x 10².

Answer: (B)