Here's a problem to solve: An island has many kinds of birds, no native species of snakes, and few large predators. Brown snakes eat bird eggs. What is the most likely result of brown snakes being released accidentally on the island?

Among the 4 following options, which is the correct answer?

- A: more snakes and fewer birds
 
- B: more snakes and more birds
 
- C: fewer snakes and fewer birds
 
- D: fewer snakes and more birds
 