Choose the best answer

1. In fact, they don't speak English well because they rarely have chances to speak to the
native speakers.
A. They can speak English well, although they don't have many chances to speak to native speakers.
B. If they had chances to speak English to native speakers, they would speak English well.
C. If they have more chances to speak English to native speakers, they will speak English well.
D. Unless they have chances to speak English to native speakers, they will speak English well.