(B)
Step-by-step explanation:
The given expression is:
![4-(2m-3)](/tpl/images/0213/4080/76128.png)
which can be simplified as:
Firstly, open the brackets in order to simplify the given expression, we have
=![4-2m-(-3)](/tpl/images/0213/4080/873f0.png)
=![4-2m+3](/tpl/images/0213/4080/864ce.png)
which is the required simplified expression.
Thus, the simplified expression is equivalent to the option B, Hence option B is correct.