Demineralization of bone resulting in softening,bending,and fracture of bones,common in women who have reached menopause,is called < u> i and is caused due to < u> ii .

• A
  $i$ - Myxoedema,$ii$ - hyposecretion of thyroxine hormone
• B
  $i$ - Acromegaly,$ii$ - hyposecretion of Growth hormone
• C
  $i$ - Osteoporosis,$ii$ - hypersecretion of parathormone
• D
  $i$ - Grave's disease,$ii$ - hypersecretion of calcitonin