In this task, you are given a short story consisting of exactly 5 sentences where the second sentence is missing. You are given two options and you need to select the one that best connects the first sentence with the rest of the story. Indicate your answer by 'Option 1' if the first option is correct, otherwise 'Option 2'. The incorrect option will change the subsequent storyline, so that at least one of the three subsequent sentences is no longer consistent with the story.
Q: Sentence 1: Frank walked to the arcade near his house.
Sentence 3: His mother noticed Frank was missing
Sentence 4: She worried when she couldn't find him
Sentence 5: When Frank walked back into the house, she was relieve
Option 1: His mother worked at the arcade and he saw her there.
Option 2: He had forgotten to tell his mother where he was going.
A:
Option 2