In the following number series, two numbers have been put within brackets. Select the most appropriate option for these numbers in relation to their inclusion in the series.2, 4, 6, 8, 10, (12), 14, 16, (18), 20

• A. The first bracketed number is correct and the second is incorrect.
• B. The first bracketed number is incorrect and the second is correct.
• C. Both the bracketed numbers are correct
• D. Both the bracketed numbers are incorrect.