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 is best supported by text evidence
from the excerpt?
Heating was a generally known means of reading
invisible ink.
James Jay was widely considered a hero for his
invention
Both the British and the Americans used James
Jay's invisible ink.
Washington helped James Jay develop the two-
bottle system