The correct option is A leads to gigantism
Growth hormone (GH) is synthesised by the anterior pituitary gland. It acts on tissues of the body to control metabolism and growth and this leads to normal growth.
When there is hypersecretion or more secretion of GH it leads to abnormal growth or gigantism.
When there is hyposecretion of GH is leads to stunted growth resulting in dwarfism.