The correct option is
C Camel.
D. Camel.
Reason: The red blood cells or Erythrocytes of camels are oval shaped which protects it from dehydration as the oval shaped cells can circulate even in thick bloodstream and can expand significantly during rehydration. It allows the camel to drink the necessarily large amount of water. The hemoglobin of camel have also a higher affinity to oxygen than other domestic animals.