Consider the following statements regarding the electrical properties of ceramic materials:1. They are practically non-conductors at a lower temperature.2. Ordinary glass and silicates in the molten state are dependable as electrical non-conductors.3. They offer high resistance to the current transmission and get heated soon when conducting electric currents.Which of the above statements are correct?

• A. 1 and 2 only
• B. 1 and 3 only
• C. 2 and 3 only
• D. 1, 2 and 3