Find the Function Value $\text { Let } f ( x ) = e ^ { - x } \text {. Find } f ( 3.9 ) \text {, rounded to four decimal places. }$

Multiple Choice

Find the function value.
- $\text { Let } f ( x ) = e ^ { - x } \text {. Find } f ( 3.9 ) \text {, rounded to four decimal places. }$

A) 1.4347
B) 10.6013
C) 49.4024
D) 0.0202