Water is the most abundant.
If the hypothesis is wrong, it doesn't exactly mean it is a failed experiment. Many scientists have failed their hypothesis and studied their data/facts to record a new hypothesis.
The client who complain of felling dizzy and light headed and having tingling sensation of fingertips around the lip is related to hyperventilation.
Hyperventilation of the client is associated with client blowing excessive carbon dioxide which lead to client fell dizzy and light headed and having tingling sensations of the finger tip around the lips If this condition is uninterrupted it could lead to respiratory alkalosis.
The repressor would no longer be able to bound back to DNA.B.