What does the following equation calculate:

all queries that access Ai and Aj $,$

Between two attributes Ai and Aj of a relation R$[$A$1,$ A$2,...,$ An$]$ with respect to the set of applications

Q $=($q$1,$ q$2,...,$ qq$)$

Group of answer choices

Storage cost of a fragment at a site

Bond Energy

Query Processing cost

Attribute Affinity$$measure