What is the difference between PI and PII according to the PMRM$?$

Question $33$ options:

PI refers to any attributes associated with a natural person while PII refers to data that are sufficient to uniquely identify a natural person.

There is no difference, the terms are used interchangeably.

PI refers to the personal information of an individual while PII refers to the personal information of an organization.

PI refers to data that are sufficient to uniquely identify a natural person while PII refers to any attributes associated with a natural person.