In which of the following are hydrogels used ?
1Controlled drug delivery in patients
2Mobile air-conditioning systems
3Preparation of industrial lubricants
Select the correct answer using the code given below :

Question

In which of the following are hydrogels used ?
1. Controlled drug delivery in patients
2. Mobile air-conditioning systems
3. Preparation of industrial lubricants

Select the correct answer using the code given below :

Accepted Answer

(A) 1 only

Answer

(B) 1 and 2 only

Answer

(C) 2 and 3 only

Answer

(D) 1, 2 and 3