Which of the following belong to class $Osteichthyes$?
$a$. Sea urchin
$b$. Seahorse
$c$. Flying fish
$d$. Sawfish
$e$. Dogfish

  • A
    $b$ and $c$
  • B
    $a, b$ and $e$
  • C
    $b$ and $e$
  • D
    $a, d$ and $e$

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