The student wants to emphasize a difference between the charango and the siku. Which choice most effectively uses relevant information from the notes to accomplish this goal?

Question

While researching a topic, a student has taken the following notes:

• The charango and the siku are two instruments used in Andean folk music.
• The charango is a small stringed instrument.
• The charango typically has 10 strings.
• The siku is a type of panpipe.
• The siku is made from hollow reed tubes of varying lengths.

Accepted Answer

A. The charango is a small stringed instrument with about 10 strings, whereas the siku is a panpipe made from hollow reed tubes of varying lengths.. A is correct: it names both instruments and contrasts them directly (stringed instrument with 10 strings vs. panpipe made of reed tubes), which is exactly what the goal requires. B fails because it states a similarity rather than a difference. C describes only the charango, so no comparison is made. D describes only the siku, so again no difference is drawn between the two instruments.

Answer

B. Both the charango and the siku are instruments used in Andean folk music. — This states what the two instruments have in common rather than how they differ, which is the opposite of the goal.

Answer

C. The charango, a small instrument that typically has about 10 strings, is used in Andean folk music. — You used only the charango notes — with nothing said about the siku, there's no difference being drawn.

Answer

D. The siku, a type of panpipe, is made from hollow reed tubes of varying lengths. — You used only the siku notes; a contrast requires information about both instruments in the same sentence.

Expression of Ideas practice question

Answer: A. The charango is a small stringed instrument with about 10 strings, whereas the siku is a panpipe made from hollow reed tubes of varying lengths.

Why the other answers are wrong

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