A Premature Baby Weighs $73$ Oz Convert This Weight to Pounds $4$

A premature baby weighs $73$ oz. Convert this weight to pounds.

A) $4$ $\frac { 9 } { 16 }$ lb
B) $4$ $\frac { 13 } { 16 }$ lb
C) $3$ $\frac { 11 } { 16 }$ lb
D) $4$ $\frac { 7 } { 16 }$ lb
E) $5$ $\frac { 5 } { 16 }$ lb