Which of the following is `//`are correct expression for percent of given element ? [ m is mass of organic compound having given element ]

Options

A. % of P `=( 62 xx m_(Mg_(2)P_(2)O_(7)) xx 100)/(2.22xxm )%`
B. % of P `= ( 31 xx m_((NH_(4))_(3)PO_(4).12MoO_(3))xx100)/(1877xx m) %`
C. % of C `= ( 12 xx m _(CO_(2)) xx 100)/( 44 xx m)`
D. % of S `= ( 32 xx m_(BaSO_(4)) xx 100)/( 233xxm)`