Question $1$:Choose all the optional query blocks in "Select" retrieval query.A$)$ SelectB$)$ WhereC$)$ FromD$)$ Order ByQuestion $2$:A NULL value meansA$)$ Value missingB$)$ Value unknownC$)$ More than $1000$D$)$ All the aboveQuestion $3$:Delete from DEF; $/*$DEF is a table$/$relation$*/$ What action does this command perform?A$)$ Delete the tableB$)$ Delete all the rows from the tableC$)$ Deletes a columnD$)$ Deletes the top $10$ tuplesQuestion $4$:An attribute$/$column$,`$fName$`,$ is of data type $`$varchar$(100)`.$ One of the entries is "ABC". How many spaces does the entry of this value create?A$)0$B$)100$C$)103$D$)97$Question $5$:Which of the following Join operations will give only the matching tuples?A$)$ Inner JoinB$)$ Left Outer JoinC$)$ Right Outer JoinD$)$ Full Outer Join