Which of the following statements about OKRs is false?

Organizations and leaders should only focus on $1-3$ ?Objectives at a time

OKRs should be set and reviewed over shorter time $-$ spans $($ typically $1-3$ ?months $)$

OKRs should not be altered once set, even if it means failure

While some OKRs come from the top, other OKRs should be developed and set by teams and individuals

All of the above are statements are true about OKRs