PLEASE HELP!! What is the bestdescription of the Pilates principle of efficiency of movement? Every move should be sharp and deliberate.

Move in and out of each exercise with fluidity.

Core muscles are the foundation of any routine.

Proper breathing is essential.

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Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line