During fever, the availability of oxygen to tissues ___(A)___ because the affinity of haemoglobin for oxygen ___(B)___ with increasing temperature.

The correct option for the two blanks is:

	A	B
1.	increases	increases
2.	increases	decreases
3.	decreases	increases
4.	decreases	decreases

• A

  1

• B

  2

• C

  3

• D

  4