Select the most appropriate meaning of the underlined idiom in the given sentence.
The intern aspired to understand the ins and outs of the operating systems of the institution.
Stem regulations
Prior conditions
Elaborate theories
Detailed description
Select the most appropriate synonym for the underlined word in the given sentence.
You also worked with another eccentric genius.
Select the option that is similar in meaning to the underlined word.
He declined the offer to join the Board of Directors.