Children who become fluent in two languages:
a. gradually lose their first language
b. often experience difficulties in reading achievement
c. outperform others on tests of cognitive flexibility
d. develop denser white matter in areas of the right hemisphere

I believe it's C. outperform others on tests on cognitive flexibility

I hope this is correct and it helped you! :)

the eye wink at the hand; yet let that be / which the eye fears, when it is done, to see.

scout gets in a bad position on the primary day of school since she can read and on the grounds that she can compose. she likewise gets in a bad position for explaining to miss caroline that she shouldn't attempt … to loan cash to walter on the grounds that he won't take it since he is to poor to pay it back.