Based on the passage, which factor most decisively influences Jess's reaction to meeting her grandfather?
Ay His intimidating physical presence and mannerisms
B His indifference to other family members' attitudes toward him
C Her parents' concerns about being reunited with him
D Her mother's ominous descriptions of his temperament

What are the two main ideas of this passage? museum experts feel that museums must change to attract visitors. museum experts care more about the number of visitors than about history. museums that display artworks and exhibits do not make families welcome. museums like colonial williamsburg make learning about the past fun. museums in the united states are different than in other countries.