Morning glories are flowering vines that will climb up a trellis or other support by wrapping tendrils around it. What kind of tropism causes the morning glories to twine around the support this way? A. phototropism, because the light pulls the morning glories upwards
B. gravitropism, because gravity helps the morning glories orient themselves in space
C. thigmotropism, because the morning glories twine around the support when they touch it
D. nutrotropism, because the curliness of the morning glories depends on the nutrients in the soil

PLEASE help me and quick