An advantages of using context clues to figure out the definition of a word is that it saves you time during a timed exam and helps you quickly move on. A disadvantage is that many times words have multiple meanings and although the clues lead to one definition another might best fit it.
An arrangement or placement with particular purpose.
To be honest they all are great choices but personally I would suggest answer C.
Hope this helps.
A. true. I actually attended that opera in 2012!
