From the question, it states that chemicals are extracted from certain sponges. This implies that certain sponges already contained this chemical previously before extraction. We will keep this in mind and move forward.
We are given 4 answer choices:
0. This is an example of genetic modification of marine organisms.
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1. This is an example of using existing chemicals from living things to create new treatments for human diseases.
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2. This is an example of creating chemicals from living things to create new treatments for different diseases in marine organisms.
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3. This is an example of creating vaccines for viral infections from the ocean.
Let's underline a few key words/phrases in each of these answer choices:
0. This is an example of ,genetic modification ,of marine organisms.
,
1. This is an example of using ,existing chemicals, from living things to ,create new treatments, for ,human, diseases.
,
2. This is an example of ,creating chemicals, from living things to ,create new treatments, for different diseases in ,marine organisms,.
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3. This is an example of ,creating vaccines, for viral infections from the ocean.
We are given the context that we are extracting chemicals that are used to treat cancer patients. That means we are using marine organisms (in this case sponges) to treat human diseases (in this case breast cancer). Therefore, the correct answer choice must be the 2nd answer choice.