Select the options in which either or both of the words are NOT spelt…

The correct answer is Option (4) → A, C and D only

A. pronounciation, government — Misspelt. pronounciation (pronunciation); government is correct.

B. eavesdrop, exacerbate — Both correct.

C. fortuitous, accomodate — Misspelt. accomodate (accommodate); fortuitous is correct.

D. tortuous, impecable — Misspelt. impecable (impeccable); tortuous is correct.

• Pronunciation means the way a word is spoken.
  Example: Her pronunciation of French words is excellent.
• Eavesdrop means to listen secretly to other people's conversation.
  Example: He was caught trying to eavesdrop on his sister's phone call.
• Exacerbate means to make a bad situation worse.
  Example: Scratching will only exacerbate the itching.
• Fortuitous means happening by chance, often luckily.
  Example: Our meeting at the airport was quite fortuitous.
• Accommodate means to provide room or space for someone or something.
  Example: The hall can accommodate five hundred people.
• Tortuous means full of twists and turns, or very complicated.
  Example: The bus climbed the tortuous mountain road.
• Impeccable means without any fault; perfect.
  Example: He has impeccable manners.