Question

read the sentence from paragraph 5.
the truth is that the size of the database each company amasses is key to the quality of the testing results they produce.
how does the author use logos to support the idea that people should consider both positive and negative information about dna before using a test kit?

• the author uses irony to question the validity of the dna databases
• the author questions whether dna databases are ethical.
• the author describes the emotional impact of dna tests
• the author explains why some dna companies are better than others.

Explanation:

To solve this, we analyze each option:

• Option 1: The sentence from paragraph 5 talks about database size affecting testing quality. The idea that some DNA companies are better (due to larger databases) relates to logos (logical reasoning) as it explains why people should consider info (since better companies have better results, so knowing this helps decide).
• Option 2: The sentence doesn't mention irony.
• Option 3: The sentence is about database size and testing quality, not ethics.
• Option 4: The sentence is about testing quality from database size, not emotional impact.

Answer:

D. The author explains why some DNA companies are better than others. (Note: Assuming the last option is D; if the options were labeled differently, adjust the identifier. But based on the content, the correct reasoning is that the author uses the logical point about database size affecting results to show why some companies are better, so people should consider info to choose wisely.)