Which of the following is true related to the optionality and cardinality of related data tables?

Group of answer choices

Optionality and cardinality rules are based on what the data CAN look like, not necessarily what they DO look like at a given time

Optionality and cardinality rules are not required in creating relationships $-$ they are "nice to have"

Optionality and cardinality are two words that mean the same thing

Optionality and cardinality rules must be based on the data that is currently recorded in the data tables