In a certain species of bacteria, it is found that 30% of the DNA base pairs are composed of guanine. What is the percentage of adenine, thymine, and cytosine in the DNA of this bacteria?

• A. Adenine: 30%, Thymine: 30%, Cytosine: 10%
• B. Adenine: 20%, Thymine: 20%, Cytosine: 30%
• C. Adenine: 35%, Thymine: 35%, Cytosine: 5%
• D. Adenine: 20%, Thymine: 20%, Cytosine: 50%

Answer: (B)