P为椭圆\( \frac{{x}^{2}}{4}+\frac{{y}^{2}}{3}=1.\)上一点\( ,{F}_{1}、{F}_{2}\)为椭圆的两个焦点\( ,\)若\( {\text{∠F}}_{1}P{F}_{2}={60}^{\circ },\overrightarrow{{\mathrm{P}F}_{1}}\mathrm{⦁}\overrightarrow{{\mathrm{P}F}_{2}}\)等于 ( )
A. 3
B. \( \sqrt{3}\) C. \( 2\sqrt{3}\) D. 2
