According to his own account, Schoenberg, in his String Trio of 1946, was depicting in musical terms a severe physical debility he suffered in the summer of that year, during which his pulse temporarily stopped and he was given an injection to the heart.(A) According to his own account, Schoenberg, in his String Trio of 1946, was depicting in musical terms a severe physical debility he suffered in the summer of that year, during which his pulse temporarily stopped and he was given an injection to the heart.
(B) Schoenberg, according to his own account, in his String Trio of 1946, during which his pulse temporarily stopped and he was given an injection to the heart, was depicting in musical terms a severe physical debility he suffered in the summer of that year.
(C) According to his own account, in his String Trio of 1946, Schoenberg depicted in musical terms a severe physical debility he suffered in the summer of that year, when his pulse temporarily stopped and his heart was given an injection.
(D) In his String Trio of 1946, he was depicting in musical terms a severe physical debility he suffered in the summer of that year, during which Schoenberg's pulse temporarily stopped and he was given an injection to the heart, according to his own account.
(E) Schoenberg was depicting, in his String Trio, in musical terms in 1946, a severe physical debility he suffered in the summer of that year, during which his pulse temporarily stopped and he was given an injection to the heart, according to his own account.
Source: GMAT Hacks - 071113