Read this excerpt from The Riddle of the Rosetta Stone by James Cross Giblin. Champollion's contributions to the world's knowledge of ancient Egypt did not end with his death, however. Working from Champollion's notes, his brother Jacques-Joseph completed the Egyptian Grammar and Egyptian Dictionary that Champollion had started. The books were published in several volumes during the 1830s and 1840s, and were warmly welcomed by most scholars in France, Germany, England, and other countries.

Based on the details in the excerpt, readers can infer that

people lost interest in Champollion’s work after his death.
Champollion’s brother also had an interest in ancient Egypt.
Champollion’s notes were destroyed after his death.
other authors also published books about ancient Egypt.

It's B.

Champollion’s brother also had an interest in ancient Egypt.

Explanation:

From the text "Working from Champollion's notes, his brother Jacques-Joseph completed the Egyptian Grammar and Egyptian Dictionary that Champollion had started."

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