Which sentence is correctly punctuated?
1.she is constantly late to work; yet, no one seems to think that is a problem.
2.the company has many unfair policies, however, the salary rates are quite good.
3.business has picked up in the last few months furthermore we have hired more staff.
4.if we could just have more snacks in the break room; we'd all be more productive as a consequence.

4.If we could just have more snacks in the break room; we'd all be more productive as a consequence.

Explanation:

''If we could just have more snacks in the break room; we'd all be more productive as a consequence.'' is correctly punctuated.

a complex sentence consists of an independent clause and one or more dependent clauses.  

to write complex sentences, we must use subordinating conjunctions.  

all the complex sentences begin with a subordinating conjunction and when it occurs, a comma must be place at the end of the dependent clause. on the contrary, if the sentence begins with an independent clause, then no comma is used.

after  

although  

as  

because  

before  

if  

since  

when  

for example,  

after she won the competition, she became very popular.  

although my father was hurt, he continued fighting for his rights.  

as all of you got a ten, you will be able to leave early today.  

before he went to the war, he asked his parents to bless him.  

if it is cold, i won’t go out.  

since you didn’t bring the homework, you will get low grades.  

when it is hot in the town, everyone goes to the beach.  

if its apex this should be the correct answer

war information to be released publicly must first be deemed useless to the enemy