How does sylvias attitude toward the stranger change

What was the biggest type of pirate ship called?

Which statement correctly analyzes this passage in terms of its historical context? marrige is a private affair

1. in which sentence is the underlined portion a predicate nominative? for astronauts, going into space to repair orbiting equipment becomes a challenge. for astronauts, going into space to repair orbiting equipment becomes tricky. for astronauts, going into space to repair orbiting equipment becomes challenging. for astronauts, going into space to repair orbiting equipment becomes frequent.