Scientists have completed the sequences for the coast redwood, which helps to better explain the genetic basis for these species’ ability to adapt to their changing environments. The research indicates that the coast redwood genome evolved from a single ancestral species. The coast redwood is the world’s tallest tree, and its genome is among the most complex sequenced. When comparing the coast redwood genome sequence to that of other conifers, researchers found hundreds of gene families unique to the coast redwood. Many are genes that help the trees respond to and fight stress, resist disease and repair after injury.

According to the passage, which statement is true about coast red wood?

A) Its genome evolved from multiple species.

B) Coast red wood sequencing is a simple task for scientists.

C) It has genes that are beneficial to recovery.

D) It has dozens of unique gene families compared to other conifers.