Which of the following solutions will have pH close to 1.0?

$100ml$ of HCl will completely neutralize $100ml$ of NaOH. So (A) is not possible, (C) will become a basic solution,(D) is the correct option.
$25ml$ HCl neutralizes $25ml$ NaOH 
Remaining solution contains $50ml$ of $\frac{M}{5}HCl$
Which becomes $100ml$ of $\frac{M}{5}HCl$ (as the total solution becomes 100ml)
$\therefore pH=-\log \left[H^{+}\right]=-\log \left[\frac{1}{10}\right]=1$