Read the following and follow instructions in class:
Question 1: Proofread the following phrases and choose the phrase with no errors and explain with reason

1). Bobby's mother is coming in with him today; they're running a little late.
2). Bobbys mother is coming in with him today; they're running a little late.
3). Bobby's mother is coming in with him today, they're running a little late
4). Bobby's mother is coming in with him today; their running a little late.
Answer with explanation:

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