The Indus river valley had kiln-baked bricks, while the Mesopotamians sun baked their bricks. Which method was more effective, and why? plzzz help

A mudbrick or mud-brick is an air-dried brick, made of a mixture of loam, mud, sand and water mixed with a binding material such as rice husks or straw. Mudbricks are known from 9000 BCE, though since 4000 BC, bricks have also been fired, to increase their strength and durability.

the answer to your question is c

according to this text from the preamble to the declaration, who gives men their unalienable rights?