Final answer:
The next two terms in the given arithmetic sequence are 19 and 28.
Step-by-step explanation:
To find the next two terms in the given arithmetic sequence, we need to determine the common difference between each term. The common difference is the constant value added to each term to get the next term. In this sequence, we can see that 10 is obtained by adding 9 to 1. Therefore, the common difference is 9. Now, we can find the next term by adding 9 to 10, which gives us 19. Similarly, we can find the term after 19 by adding 9 to it, resulting in 28. So, the next two terms are 19 and 28. Therefore, the correct answer is A. 19, 28