What Is the Purpose of Colspan in < Td Colspan="7

Multiple Choice

What is the purpose of colspan in < td colspan="7" >?

A) ​It sets each cell to span seven rows within its column.
B) ​It sets each cell to span seven columns within its row.
C) ​It sets each cell to span the eighth column within its row into equal parts.
D) ​It sets each cell to span the eighth row within its column into equal parts.