Which of the following are the properties of Polytetrafluoroethylene?1) Extreme heat resistant2) Low resistance to most chemical reagents3) Excellent insulating properties over a wide range of temperature4) Non-hygroscopicitySelect the correct answer using the code given below:

Which of the following are the properties of Polytetrafluoroethylene?1

1.	Which of the following are the properties of Polytetrafluoroethylene?1) Extreme heat resistant2) Low resistance to most chemical reagents3) Excellent insulating properties over a wide range of temperature4) Non-hygroscopicitySelect the correct answer using the code given below:
A.	1, 2 and 3
B.	1, 3 and 4
C.	1, 2 and 4
D.	2, 3 and 4
Answer» C. 1, 2 and 4