Which of the following manifestations indicates early stage of rickets? () A: Harrison grooves and ribs valgus B: squared skull C: low spirits D: sweating, easily irritated E: convulsions or tetany

What is the most common changes of infants within six months with vitamin D deficiency of rickets () A: hand and foot bracelet B: rib valgus C: skull softening D: chicken breast E: O-shaped legs