Organisms depend on hormones as well as electric impulses for the transmission of signals from the brain to the rest of the body. Which of the following is the advantage of hormones over electric impulses? 

It does not depend on an external stimulus to be generated in the cells. 

It is secreted by stimulated cells and reaches all cells of the body. 

It is secreted by all types of cells present in the body. 

It is relayed to the target organ at a faster rate than electric impulses.