The answer is A. The first sentence is capitalized at the beginning of the sentence and has a space after the comma. The reason why b is incorrect is because the first letter of the first sentence is not capitalized and there is no space after the comma. Additionally, there is a random period in the middle of the second sentence. The answer is not c because there is no comma in between the yes and Anna which is a fragment sentence. The first letter of the second sentence is not capitalized as well. Lastly, the answer cannot be d because the the first letter of the first sentence is not capitalized and there is no space after the comma. Additionally there is a period in the middle of the second sentence and no period at the end. In conclusion the answer is A. I hope this explanation helped!
