Consider Two Genes That Are Next to Each Other on a Chromosome

Consider two genes that are next to each other on a chromosome, as arranged in Figure 7-1. Figure 7-1
Which of the following statements is TRUE?

A) The two genes must be transcribed into RNA using the same strand of DNA.
B) If gene A is transcribed in a cell, gene B cannot be transcribed.
C) Gene A and gene B can be transcribed at different rates, producing different amounts of RNA within the same cell.
D) If gene A is transcribed in a cell, gene B must be transcribed.