What do index access structures typically store?

Group of answer choices

a set of attributes values that are part of a candidate key collection use for referencing pointers

all values of contained in a tuple along with the primary key attributes that exist as foreign keys among other relations

hash map of identifiers of relations which usually correspond to relative domain$-$keys used in join operations

each value of the index field along with a list of pointers to all disk blocks that contain records with that field value