Figure 38-2 Use the Figure to Answer the Corresponding Question(s)

Multiple Choice

Figure 38-2
Use the figure to answer the corresponding question(s) .
-Refer to Figure 38-2.The photoperiodic response of the plant in row a suggests:

A) a brief dark period is the light cue that induces flowering.
B) a brief daylight period is the light cue that induces flowering.
C) a long uninterrupted daylight period is the light cue that induces flowering.
D) a long uninterrupted dark period is the light cue that induces flowering.
E) Cannot be determined from the data provided.