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B. to cook
An infinitive almost always begins with “to” and is followed
by the basic form of the verb. It is usually in this form:
To + Verb = Infinitive
An infinitive is NOT a verb, so s, es, ed, or ing should not
be added to the end. Infinitives can be used as nouns, adjectives or adverbs.
According to the pattern of what an infinitive should be, “to cook” is the
infinitive of this sentence and it functions as a noun.
Answer:
Vaccines prevent the spread of contagious, dangerous, and deadly diseases. These include measles, polio, mumps, chicken pox, whooping cough, diphtheria, and HPV. The first vaccine discovered was the smallpox vaccine. Smallpox was a deadly illness.
A vaccine activates our immune system without making us sick. Many dangerous infectious diseases can be prevented in this simple and effective way. A vaccine activates our immune system without making us sick.
Vaccines contain weakened or inactive parts of a particular organism (antigen) that triggers an immune response within the body. Newer vaccines contain the blueprint for producing antigens rather than the antigen itself.
Explanation:
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