D.........................
3x - 4y = 24
- 3x - 3x
---------------------------
-4y = -3x + 24
------ ------- -----
-4 -4 -4
y = 3/4x - 6
B...<span>nucleus:chromosomes is correct. When chromosomes replicate then the exact copies will be made . This process called replication on chromosomes.</span>