Why does chief kimki decide the tribe must leave the island?
a. the tribe fears captain orlov will return to kill them all.
b. there are no otters left to hunt.
c. the memories of the dead members of the tribe haunt those who remain.
d. there are not enough people on the island to do all the work.
(this is about the book "island of the blue dolphins")

faithful servants eumaeus and philaetius:

his ragged vest then drawn aside disclosed the sign conspicuous, and the scar exposed: eager they view'd, with joy they stood amazed with tearful eyes o'er all their master gazed:

these servants know ulysses by the scar he got when he was a child - so when he showed them the mark, they immediately knew this is truly their master and they hugged him, finally starting to believe his words.

heres a link to answer that question enjoy!