1.Identify the reason for the comma(s) in the following sentence:

When you have the opportunity to interview for a job, you can improve your chances for consideration by dressing for success.

a.To join two independent clauses (along with a conjunction)

b.To separate an introductory word, phrase, or dependent clause from the rest of the sentence

c.To separate an interruption from the rest of the sentence

d.To separate items in a series

2.An interviewee’s attitude, preferably positive, can significantly influence the outcome of an interview.

a.To join two independent clauses (along with a conjunction)

b.To separate an introductory word, phrase, or dependent clause from the rest of the sentence

c.To separate an interruption from the rest of the sentence

d.To separate items in a series

3.The graduates were thrilled with their job offers, and their parents were equally as happy.

a.To join two independent clauses (along with a conjunction)

b.To separate an introductory word, phrase, or dependent clause from the rest of the sentence

c.To separate an interruption from the rest of the sentence

d.To separate items in a series

4.Three key components for success in almost any field are communication skills, interpersonal skills, and motivation.

a.To join two independent clauses (along with a conjunction)

b.To separate an introductory word, phrase, or dependent clause from the rest of the sentence

c.To separate an interruption from the rest of the sentence

d.To separate items in a series

3 answers

I'll be glad to check your answers.
1. A
2. B
3. D
4. D
Can some check this for me thanks