Insert Two Arithmetic Means Between 20 and 30 $\frac { 50 } { 3 } , \frac { 55 } { 3 }$

Multiple Choice

Insert two arithmetic means between 20 and 30 .

A) $\frac { 50 } { 3 } , \frac { 55 } { 3 }$
B) $\frac { 38 } { 3 } , \frac { 53 } { 3 }$
C) $\frac { 100 } { 9 } , \frac { 100 } { 7 }$
D) $\frac { 70 } { 3 } , \frac { 80 } { 3 }$