The answer to this question will be B
A theme can be inferred if it is a recurring element in a story that is being narrated.
For example, if a text talks constantly about getting revenge, there is a very good chance that this is the theme or one of the themes of the text and this would help advance the plot.
<h3>What is a Theme?</h3>
This refers to the central message of a text that an author wants to convey to his readers.
Hence, we can see that your question is incomplete because you did not include the text, so a general overview was given to help you better understand the concept.
Read more about themes here:
brainly.com/question/11600913
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A vaccine is a biological preparation that provides immunity to a particular infectious disease. It typically contains an element that resembles a disease causing microorganism.
Explanation:
Vaccine is used to stimulate our immune system and provide immunity against a particular disease by producing antibodies against that disease.
Process of injecting vaccine in our body is termed as vaccination.
Vaccine is made from some weakened part or killed forms of the microorganism that cause a particular disease for which vaccine is being prepared. Toxin parts or proteins strands of microorganism can also be used for this purpose.
First vaccine was developed in 1796. This vaccine was for smallpox and it was developed by Edward Jenner.
