How does the melting temperature of borosilicate glass compare to that of soda-lime glass?

The correct option is It has a higher melting temperature. This answer is correct because it matches the approved learning objective to describe borosilicate glass as made from sand and boron trioxide and having a higher melting temperature than soda-lime glass. (Chemistry only) in the subtopic Ceramics, polymers and composites.

The correct option is It has a higher melting temperature. It has a higher melting temperature is correct because it directly supports the approved learning objective to describe borosilicate glass as made from sand and boron trioxide and having a higher melting temperature than soda-lime glass. (Chemistry only). This belongs to the subtopic Ceramics, polymers and composites within Using materials, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Ceramics, polymers and composites.