Ding dong ditch my friends did that to me last night lol

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.

Which group of words is an independant clause a. she came late b. so how was the c. there was an old d. nearly running down

Shawn is a 55-year-old man. what health screening will his healthcare provider most likely recommend that shawn receive? a. blood test for anemia b. vision test c. mammography for breast cancer d. prostate exam e. immunization for pertussis