Mark the letter A, B, C, or D on your answer sheet to indicate the best arrangement of utterances sentences to make a meaningful exchange or text in each of the following questions.

a. Nam: Hi, Jessica. I'm so excited as I've never met a talking robot before. Let's have a photo taken together!
b. Teacher: Hello, class. Please meet Jessica. She's a human-like robot and will be your guide today.
c. Jessica: Good morning, everybody. Welcome to the New Tech Centre.