In this task, you're given the title and three arbitrary sentences out of a five-sentence story. You are also given three additional sentence options, a, b, and c, that may or may not belong to the story. Your job is to pick the two options that seamlessly connect with the rest of the story and their positions in the sentence order of the story; note that the selected choices may fit into the story at any point. Your answer must be in the form of '2a, 5b', where '2a' means the candidate sentence 'a' will be inserted as the 2nd sentence in the story. The answer must also be in the order of the selected choices, i.e., '2a, 5b' is allowed, and '5b, 2a' is not allowed. If options are equally plausible, pick the ones that make more sense.
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Question: Title: One evening, she got a headache while driving. She pulled over to take some painkillers. This caused another driver to hit her car, totalling it. Choices: a. The doctor ran some tests and found a pinched nerve in his neck. b. Diana was always a careful driver. c. When she pulled over, she forgot to put on her hazard lights.

Answer: 1b, 4c

Question: Title: But he changed his mind and put half of the items back. And he spent twenty minutes looking for other things to buy. In the end, however, Barry decided to buy the initial six items. Choices: a. Food spilled everywhere but luckily nearby people helped her. b. And he decided on six items he would buy. c. Barry was at the grocery store.

Answer: 2b, 1c

Question: Title: So when someone stole his cell phone at work everyone was indignant. But when they didn't catch the thief, they all pitched in. They offered Robert a new model to make up for the stolen one. Choices: a. Robert was a good guy. b. Jake was sad to have to postpone the climb. c. They all tried to find out who had done it.

Answer:
1a, 3c