What does the underlined conjunction connect in the sentence?

swimming and diving are popular water sports.

a.
predicates

b.
sentences

c.
subjects

d.
direct objects

the anasazi indians were real pioneers and created roads and irrigation systems for watering their crops. they were also great architects and the cliff dwellings are one of their biggest achievements.

explanation:

if you have to make a general question and respond to your thoughts, then this isn't really a question someone can you on. read the passage, form your question, and answer using your thoughts. no one else can understand how you interpreted this text if you don't tell us.