Which of the following statements is true of the twins? ___

A、Johnny would not eat the beans on his plate unless they are of the same length.
B、Colin is a naughty boy, sometimes using his mother’s lipstick to draw pictures.
C、If one slat in a Venetian blind is tipped in the wrong direction, Johnny would go to fix it.
D、Colin has a lightness of touch and is an expert at safe-cracking.