## Discussion Forum

Que. | Let f: B → C and g: A → B be two functions and let h = f o g. Given that h is an onto function. Which one of the following is TRUE? |

a. | f and g should both be onto functions |

b. | f should be onto but g need not be onto |

c. | g should be onto but f need not be onto |

d. | both f and g need not be onto |

Answer:f should be onto but g need not be onto |