What is a springing power of attorney?

Question $17$ options:

a$)$

A power of attorney that is transferred to another individual at a defined point of time in a disability.

b$)$

A power of attorney that takes effect at a defined point of time in a disability.

c$)$

A power of attorney that takes effect retroactively.

d$)$

A power of attorney that takes effect immediately.

e$)$

None of the above.