The correct option is C Cell → Tissue → Organ → Organ system → Organism
∙ The cell is the basic unit of life.
∙ Cells that have a similar function form a tissue.
∙ The tissues group together to form organs and a number of organs together form an organ system.
∙ Many organ systems together form an organism. Eg: Stomach cells form a tissue in it.
∙ These tissues form the organ, stomach.
Stomach, intestine and various other organs join to form the digestive system.
∙ Digestive system, excretory system, respiratory system, etc., together form an organism.