Choose the correct statement from the following:
$A$. Charles Darwin travelled around the world in a ship called $HMS$ Beagle
$B$. There has been gradual evolution of life forms
$C$. According to Darwin,fitness refers to physical fitness only
$D$. Fossils are remains of hard parts of life forms found in rocks
$E$. Hugo De Vries,a naturalist worked in Malay Archipelago.

• A
  $A, B$ and $D$ are correct
• B
  $A, C$ and $D$ are correct
• C
  $A, B$ and $E$ are correct
• D
  $A, C$ and $E$ are correct