Which one of the following is the landmark performance of Dr. V.Mohan Reddy, an Indian born doctor working in USA, during February, 2005

(a)

Research on human stem cell which is likely to revolutionise treatment of deadly disease like cancer

(b)

Successful open heart procedure called arterial switch performed on an infant

(c)

Research on genetic engineering which can help in treatment of deadly disease like AIDS

(d)

Successful brain surgery to revive the function of nearly dead brain of a premature born infant