Read the text and determine if the sentence is true (see options at the end):

How to get the correct posture in ballet<br>Gain knowledge about the types of ballet. [substeps] Choose the hand of your choice. With the palm of that hand facing the floor, place it in the space beneath the middle of you back, but above your tailbone.

Sentence: Would be ballerinas would do well to follow the instructions in this context. 
Choose from:
 +Yes.
 +It's impossible to say.
 +No.