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Q. |
## Which of the following regular expression identity is true? |

A. | r(*) = r* |

B. | (r*s*)* = (r + s)* |

C. | (r + s)* = r* + s* |

D. | r*s* = r* + s* |

Answer» B. (r*s*)* = (r + s)* |

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