In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.
It's turning out to be a tough summer for the State. With an alarming dip (1) ______ groundwater levels across (2) ______ state, experts fear residents (3) ______ soon have to battle an (4) ______ water crisis, along (5) ______ extremely high temperatures.
Select the most appropriate option to fill in blank No.4.