Read the passage. In Federal Drug Administration clinical trials, people who added a particular drug to diet and exercise were able to lose weight, as well as lower their blood pressure. This drug was evaluated in two clinical studies involving overweight adults with high blood pressure. The results of the trials showed that 48 percent of people taking this drug lost some of their body weight. The other group in this trial consisted of people who were not taking this medicine, and only 23 percent of them lost some weight. What is the claim

The question is incomplete and the full version can be found online.  

This drug helps people lose more weight than diet and exercise alone.

Explanation:

The clinical trials involving overweight adults with high blood pressure that were already dieting and exercising showed that those taking the drug under evaluation were more likely to lose weight than those who were not taking the drug. This means that the drug helps people lose more weight than if they were only dieting and exercising.

The claim is not that exercise and diet are more effective to lose weight than the drug, nor that all overweight adults have high blood pressure, and it´s never implied that this drug won’t help people lower their blood pressure if they already exercise.

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.