​In the question given below, four words have been highlighted. These four words are may not have been placed in their correct positions. The sentence is then followed by options with the correct combination of words that should replace each other in order to make the sentence grammatically and contextually correct. Find the correct
​combination of the words that should replace each other.​

Not getting regularly (A) quality sleep enough (B) raises the risk (C) of many diseases and disorders (D).

Correct option is B

The sentence is contextually incoherent. The correct interchange to make sentence meaningful is (A)-(B).
After interchange the sentence formed will be, “Not getting enough quality sleep regularly raises the risk of many diseases and disorders.”