With reference to the interior of the earth consider the following statements.1] The earth's core is made up of very heavy material.2] The mantle extends from Moho's discontinuity to a depth of 2,900 km.3] The material in the upper mantle portion is called magma.Which of the statements given above is / are correct?

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