<prompt> Most common type of rhabdomyosarcoma is?PleomorphicEmbryonalAlveolarBotryoid  <response>: MC sarcoma in infancy or childhood is embryonal rhabdomyosarcoma. In some cases, it manifests as a polypoid grapelike mass sarcoma botryoides. MC sarcoma in the bladder in adults is leiomyosarcoma 