In a town there are 1600 phones out of which 3/4 are dial phones. 1/3 of those dial phones are replaced by touch-tone phones and 300 additional touch tone phones are installed. The fraction representing the touch tone phones in town is?

1. A Option A: 7?19
2. B Option B: 7?16
3. C Option C: 7?23
4. D Option D: 9?16
5. E Option E: 1?2