Which of the following materials are categories of ceramic materials?1. Oxides – Alumina, Zirconia2. Non-oxides – Carbides, Borides, Nitrides, and Silicides3. Composites – Particulate reinforced combinations of oxides and non-oxidesSelect the correct answer using the code given below.

Which of the following materials are categories of ceramic materials?1

1.	Which of the following materials are categories of ceramic materials?1. Oxides – Alumina, Zirconia2. Non-oxides – Carbides, Borides, Nitrides, and Silicides3. Composites – Particulate reinforced combinations of oxides and non-oxidesSelect the correct answer using the code given below.
A.	1 and 2 only
B.	1 and 3 only
C.	2 and 3 only
D.	1, 2 and 3
Answer» E.