When would you use a resource to look up the meaning of the word cultivation?

a.
to find the current usage
c.
to check your educated guess
b.
when you’re stumped
d.
all of the above

The answer is D
I would look up the word cultivation if I needed the definition, the current usage. I think that when everyone guesses something they always want to know if they are right . So because of all of that D is the answer.
Cultivation:
"The action of cultivating land"

Day 1: separated light from darkness day 2: skyday 3: land and waterday 4: sun,moon and starsday 5: creatureday 6: man and humanday 7: rested