The ws manipulator $\_\_\_\_\_\_\_\_.$

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a

will stop and return at the end of the user's input

b

will remove the user's $\text{'}$

$\text{'}$ and wait for more input

c

removes all whitespace from the input buffer

d

removes whitespace from the head$/$beginning of the buffer

e

will at least force cout to display any waiting prompt before it starts to remove whitespace