Identify the Letter of the Choice That Best Matches the Phrase

Multiple Choice

Identify the letter of the choice that best matches the phrase or definition.
-This method duplicates items within an array.

A) array.unshift(values)
B) array.toString()
C) pop()
D) concat(array1,array2,...)
E) sort()
F) copyWithin(target,start[,end])
G) join(separator)
H) shift()
I) reverse()
J) push(values)