The last sentence is wrong, it has bad grammar
Full of- ful
the condition of-ment
without-less
in what manner-ly
on who-ar
Answer: A
Explanation:
An idiom is a figurative writing technique that usually uses the metaphor of completing a certain literal process. This hence prescribes a certain type of attitude to the individual in question. The idiom is 'willing to work from the ground up', Leroy in this case likely wont be physically building something from the ground up. But instead he will be metaphorically approaching the task at hand and is willing to put in all the hard work necessary to learn everything he can.
I’m not sure I quite understand your question. I’d love to help you if only you could just elaborate