Question from the Linux test

User strawberry with primary group strawberry trouble login into a host using her ssh keys. Given below file listing on the target host which file need modified permission to fix the ssh key login issue?

drwxrwxr-x 4 strawberry fruit      4096 Jan 19 00:22 /home/strawberry
drwxrwxr-x 2 strawberry strawberry 4096 Jan 19 00:05 /home/strawberry/.ssh
-rw-rw-rw- 1 strawberry strawberry 6406 Jan 19 00:04 /home/strawberry/.ssh/authorized_keys
-rw-rw-rw- 1 strawberry strawberry 1623 Jan 19 00:04 /home/strawberry/.ssh/id_rsa.pub
-rw-rw-rw- 1 strawberry strawberry 1004 Jan 19 00:04 /home/strawberry/.ssh/known_hosts
-rw-rw-rw- 1 strawberry strawberry 6569 Jan 19 00:04 /home/strawberry/.ssh/id_rsa