Which best expresses an idea found in the passage?
A) The style of portraits have changed over time.
B) Portraits are often a very profitable genre for artists.
C) Portraits are the most difficult type of painting to do.
D) The most expensive piece of art in the world is a portrait.

Type the correct answer in the box. spell all words correctly. certain species of insects introduced accidentally in a forest are destroying all the douglas fir trees in that forest. the wood of these trees is extensively used for construction. in order to control the damage caused by these insects, the forestry department decided to introduce the moth caterpillar in the forest. these caterpillars are natural predators of the insects. which method did the forestry department implement to control the invasive species? the forestry department implemented a(n) control method.