Which of the following clusters of terms accurately describes DNA as it is gener

Which of the following clusters of terms accurately describes DNA as it is generally viewed to exist in prokaryotes and eukaryotes?
A) double-stranded, parallel, (A + T)/C + G) = variable, (A + G)/(C + T) = 1.0
B) double-stranded, antiparallel, (A + T)/C + G) = variable, (A + G)/(C+ T) = 1.0
C) single-stranded, antiparallel, (A + T)/C + G) = 1.0, (A + G)/(C + T) = 1.0
D) double-stranded, parallel, (A + T)/C + G) = 1.0, (A + G)/(C + T) = 1.0
E) double-stranded, antiparallel, (A + T)/C + G) = variable, (A + G)/(C + T) = variable

Our teacher assigned this from our Essentials of Genetics book