Being interested in native butterflies, you include the native caterpillar host plants of several butterflies in your annual landscape design. You are happy to see that caterpillars and butterflies appear in your yard. However, the butterflies tend to disperse out of our yard. To keep the butterflies in your garden, an urban wildlife specialist suggests you .a. ask the neighbors to refrain from planting "butterfly plants" in their yards.
b. place pans of honey solution around your yard to feed the butterflies.
c. use pesticides to kill off predators.
d. introduce native flowering plants the adult butterflies need for nectar, their main food.
e. try to introduce predators of the butterflies.