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

* Platinum is a rare and expensive metal.
* It is used as a catalyst for chemical reactions.
* Platinum catalysts typically require a large amount of platinum to be effective.
* Researcher Jianbo Tang and his colleagues created a platinum catalyst that combines platinum with liquid gallium.
* Their catalyst was highly effective and required only trace amounts of platinum (0.0001% of the atoms in the mixture).

The student wants to explain an advantage of the new platinum catalyst developed by Jianbo Tang and his colleagues. 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:

* Platinum is a rare and expensive metal.
* It is used as a catalyst for chemical reactions.
* Platinum catalysts typically require a large amount of platinum to be effective.
* Researcher Jianbo Tang and his colleagues created a platinum catalyst that combines platinum with liquid gallium.
* Their catalyst was highly effective and required only trace amounts of platinum (0.0001% of the atoms in the mixture).

The student wants to explain an advantage of the new platinum catalyst developed by Jianbo Tang and his colleagues. Which choice most effectively uses relevant information from the notes to accomplish this goal?

Accepted Answer

While still highly effective, the new platinum catalyst requires far less of the rare and expensive metal than do other platinum catalysts.

Answer

Researcher Jianbo Tang and his colleagues created a platinum catalyst that combines platinum, a rare and expensive metal, with liquid gallium.

Answer

Like other platinum catalysts, the new platinum catalyst requires a particular amount of the metal to be effective.

Answer

Platinum is a rare and expensive metal that is used as a catalyst for chemical reactions; however, platinum catalysts typically require a large amount of platinum to be effective.