Read the Following Scenario and Answer the Question Below

Read the following scenario and answer the question below.
Many biologists and environmental educators are interested in maintaining biodiversity in urban landscapes, where preserves or reserves are scarce unless land has been set aside for them in urban planning. Nonetheless, they have discovered that making even small changes in commercial and residential landscaping can help promote biodiversity. Some of the changes that have been recommended and are having success are using native species for street trees and for decorative landscaping, reducing pesticide use on lawns and gardens and reducing fertilizer use through composting and mulching. Also, managers of schools, larger businesses and residences are encouraged to increase habitat diversity by creating ʺlandscape islandsʺ that include larger trees surrounded by shrubs and herbaceous plants. Landscape islands ideally should include native species, mixed with exotic ornamentals at the discretion of the land owners.
-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 ʺbutterfly plantsʺ 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

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