DDL statement for adding a column to an existing table is

to add a column to existing table.

to rename any existing column.

to change datatype of any column or to modify its size.

to drop a column from the table.

Explanation:

hope this help

the answer would be 2

since they are only saying that the couple has 20 daughters and so on but they never said that they went to the movies as well therefore the couple was the only people that went to the movies.

hope this ! : 3