Which is the correct entity of Column 1 in Column 2.

[Here, m is the magnification]:

Column 1		Column 2
A	$\mathrm{m}=-2$	a	Convex mirror
B	$\mathrm{m}=-\frac{1}{2}$	b	Concave mirror
C	m = +2	c	Real image
D	$\mathrm{m}=+\frac{1}{2}$	d	Virtual image

• A

  A $\to$a, c B $\to$a, dC $\to$a, bD $\to$a, d

• B

  A $\to$a, d B $\to$b, cC $\to$b, dD $\to$b, c

• C

  A $\to$c, d B $\to$b, cC $\to$b, cD $\to$a, d

• D

  A $\to$b, c B $\to$b, cC $\to$b, d,D $\to$a, d