a).only leaves will show color flower will tend to be dark. b).only flower will show up leaves will tend to be dark. c). both leaves and flowers will be dark. (any object which has a color absorbs rest of colors of spectrum except that color which it reflects for example: green leaves absorbed v.i.b.y.o.r. except green which is reflected by leaves) so if placed in red light they will not show any color because leaves will absorb red color)