My parents will be happy if we are home by 10 p. m.

which kind of clause are the words in bold?

a.

noun clause
b.

adverb clause
c.

adjective clause

In which sentence is the subjunctive mood correctly used? if she were impatient, she would not be suited for this work. they are ready to go to work now. she was impatient to get to work on time. he listens to instructions very carefully when at work.