Read the excerpt from "Tools of the Spymaster."
James Jay's invisible ink did not become visible by heating. As he described it, his ink "would elude the generally known means of detection, and yet could be rendered visible by a suitable counterpart." Jay's invisible ink consisted of two chemicals. An agent used one chemical to write an invisible message. To read the message, the reader had to brush a second chemical on the paper; that chemical made the message visible. The two-bottle system, supplied by Jay, gave Washington the secure form of writing that he wanted.
Which statement includes explicit information from the excerpt?
Washington asked James Jay to invent a form of invisible ink.
Washington only knew about invisible ink that required heating.
James Jay was a doctor who had knowledge of chemistry.
James Jay created an invisible ink system that required two chemicals.
Answers
Answer:
d
Explanation:
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Answer :
James Jay created an invisible ink system that required two chemicals.
Explanation :
The statement "James Jay created an invisible ink system that required two chemicals" includes explicit information from the excerpt because it is directly stated in the passage. The author writes that Jay's invisible ink "consisted of two chemicals" and that an agent used one chemical to write an invisible message and that a second chemical was used to make the message visible. The passage also states that this two-bottle system was supplied by Jay and that it gave Washington the secure form of writing he wanted. The other statements, "Washington asked James Jay to invent a form of invisible ink," "Washington only knew about invisible ink that required heating," and "James Jay was a doctor who had knowledge of chemistry" are not explicitly stated in the passage, but can be inferred from the information provided. It is not mentioned in the passage if Washington asked James Jay to invent the invisible ink or if James Jay is a doctor who had knowledge of chemistry, but it is clear that James Jay was a chemist and had knowledge in the field to create an invisible ink system.
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