Nadine is researching Lewis and Clark’s journey West. She has read a letter from Thomas Jefferson to Meriwether Lewis, in which Jefferson gives Lewis specific orders. She has also read several entries from Lewis’s diary. Which statement best illustrates a synthesis of ideas between these two texts?

In his diary, Meriwether Lewis diligently records details about the plants and animals the expedition finds.
Reading Meriwether Lewis’s diary confirms that he carried out instructions issued by President Jefferson.
In a letter to Meriwether Lewis, President Jefferson issues instructions related to Lewis’s travels.
Reading President Jefferson’s letter to Meriwether Lewis reveals that Jefferson had instructions for Lewis.