If the Heights of Male College Basketball Players and Female $< \mu _ { 1 } - \mu _ { 2 } < 19.81 \mathrm {~cm} ,$

If the heights of male college basketball players and female basketball players are used to construct a 95 % confidence interval for the difference between the two population means, the result is 15.35 cm $< \mu _ { 1 } - \mu _ { 2 } < 19.81 \mathrm {~cm} ,$
where heights of male players correspond to population 1 and heights of female players correspond to population 2. Express the confidence interval with heights of female basketball players being population 1 and heights of male basketball players being population 2 .

A) $15.25 \mathrm {~cm} < \mu _ { 1 } - \mu _ { 2 } < 19.81 \mathrm {~cm}$
B) $- 15.35 \mathrm {~cm} < \mu _ { 1 } - \mu _ { 2 } < - 19.81 \mathrm {~cm}$
C) $- 19.81 \mathrm {~cm} < \mu _ { 1 } - \mu _ { 2 } < - 15.35 \mathrm {~cm}$
D) This cannot be determined without having the original data values.