The singers in Saura's choir have heights $148 \mathrm{~cm}, 141 \mathrm{~cm}, 172.5 \mathrm{~cm}, 168 \mathrm{~cm}, 151.5 \mathrm{~cm}, 183.5 \mathrm{~cm}$, and $178.5 \mathrm{~cm}$

What is the range of their heights?
(A) $42.5 \mathrm{~cm}$
(B) $27 \mathrm{~cm}$
(C) $52.5 \mathrm{~cm}$
(D) $37.5 \mathrm{~cm}$
(E) $31.5 \mathrm{~cm}$
The largest height of the singers in Saura's choir is $183.5 \mathrm{~cm}$.

The smallest height of the singers in Saura's choir is $141 \mathrm{~cm}$.

Thus, the range of their heights is $183.5 \mathrm{~cm}-141 \mathrm{~cm}=42.5 \mathrm{~cm}$.

ANSWER: (A)