ExplanationFind Airline B's rating for convenience (8.0) and Airline A's rating for convenience (5.1).

Category | A | B | C |

Convenience | 5.1 | 8.0 | 4.3 |

Friendliness | 5.0 | 5.5 | 5.4 |

Price | 5.0 | 6.4 | 3.5 |

Promptness | 6.5 | 6.9 | 4.1 |

Reliability | 7.8 | 7.5 | 4.9 |

Total: | 29.4 | 34.3 | 22.2 |

Determine the increase: 8.0 – 5.1 = 2.9

Now we find the percent change and round to the nearest whole number: Percent change = increase ÷ original number × 100 → 2.9 ÷ 5.1 × 100 = 56.86% or

57%.

Hence option D is correct.
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Sandy

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