The word difficult is an adjective since it describes something
Felled is the simple past tense
Falling can be your answer If youre verb but its not it
Fallen can be your answer if you want to know the past particple of the word for fall
Fell can be your answer if you were asking for the past tense of the word "fall "
Your answer: Fallen (option C) ; if option C isnt right then try going with option D. Fell
Answer:
an inclination towards a particular characteristic or type of behaviour.
Explanation:
you can also check on a website, type in Wordly wise pdf, you might find other definitions