Read the following context and choose the best option to answer the question.
Context: Always try to perform free weight exercises that work combinations of muscle groups with each exercise . In this way , you will work your body more effectively than if you used standard isolation exercises . Do not focus on one area alone .
Question: What will happen if one follows this advice ?
Options: 
- They will build up plaque .
 - None of the above choices .
 - They will build strength .
 - They will build up a heavier core .


They will build strength .