In the Code for the KeysToIndexes Function, What Is the Missing

Multiple Choice

In the code for the keysToIndexes function, what is the missing code? def keysToIndexes(keys, n) :
Return < missing code >

A) list(map(lambda key: key % n, keys) )
B) list(map(lambda key: keys, key % n ) )
C) map(list(lambda key: key % n, keys) )
D) map(list(lambda key % n: keys, key) )