The correct answer is B. Science museums in towns similar to Middletown have attracted many visitors, which is good for the community.
Step-by-step explanation:
In argumentative essays and speeches in which the main purpose is to convince the audience of supporting a specific idea, the position of the author or speaker is stated through a main claim or thesis statement. However, for the author to accomplish his goal of persuading the audience evidence and reasons need to be provided. In general terms, for a fact or detail to be appropriate it needs to directly address and support the main claim usually by showing to the audience the benefits or reasons for supporting it and should be verifiable, which means it is not an opinion from the author but can be proven or has been supported by other authors.
Considering this, the statement that presents appropriate facts and details to support the claim "Middletown should have a science museum" is "Science museums in towns similar to Middletown have attracted many visitors, which is good for the community", because this is a verifiable detail and also shows the audience one benefit or reason to believe the idea purposed by the author, which is the main objective of this type of statements.