De acordo com o segundo parágrafo do texto,

Considere o excerto a seguir, retirado do site do jornal britânico The Guardian, para responder à questão.

    Homeopaths believe that illness-causing substances can, in minute doses, treat people who are unwell. By diluting these substances in water or alcohol, homeopaths claim the resulting mixture retains a “memory” of the original substance that triggers a healing response in the body.

    These claims have been widely disproven by multiple studies, but the National Health and Medical Research Council (NHMRC) has for the first time thoroughly reviewed 225 research papers on homeopathy to come up with its position statement, released on Wednesday: Homeopathy is not effective for treating any health condition.

(Adaptado de www.theguardian.com - acesso em 12/03/2015)