Your answer, "Each other's", is not correct.
The correct answer to
Whose burden should we bear?
is
Our own
as shown by
Galatians 6:5
which is
- KJV
- For every man shall bear his own burden.
- NIV
- for each one should carry his own load.
Your answer, "Each other's", is not correct.
The correct answer to
is
as shown by
which is