Final answer:
The misspelled word in the choices given is (d) sensable, which should be spelled as 'sensible'.
Step-by-step explanation:
The word that is misspelled in the options provided is (d) sensable. The correct spelling of this word is sensible. Common spelling mistakes can occur when words sound alike but are spelled differently, or when there are silent letters involved. Always remember to check the spelling if you are unsure and consult a dictionary when necessary. This practice will help improve your vocabulary and spelling skills.