Find the Binary Equivalent for Each of the Following Decimal $1010.1101 _ { 2 }$

Multiple Choice

Find the binary equivalent for each of the following decimal numbers.
-18.8125

A) $1010.1101 _ { 2 }$
B) $1100.1101 _ { 2 }$
C) $10010.1011 _ { 2 }$
D) $10010.11 _ { 2 }$
E) None of these