$9.$ Consider the following sequence of events:

I. A process opens a new file

II$.$ The process forks

III. The child writes to the file with a write$()$ system call

IV$.$ The parent waits for the child to complete

V$.$ The parent writes to the file with a write call

Which of the following happens when the parent writes to the file:

a$.$ The parent overwrites what the child has written, unless it uses LSEEK to get to the end

b$.$ The parent$$s write may happen before the child$$s write, but no data is overwritten

c$.$ The parent$$s write will always be after the child$$s write, and no data is overwritten

d$.$ The parent$$s write MAY overwrite what the child has written

e$.$ None of the above