C, none of the above! if the aperture width is large, then so is the f-stop. the larger the opening of the aperture, the lower the f-stop number
Ye ok maybe later when I have finished with my work
The modern trumpet has three valves and a bore that is partly cylindrical, partly conical. The standard orchestral trumpet, built in B-flat, has a range of about three octaves extending upward from the F-sharp be extending upward from the F-sharp below middle C(F3 sharp = 185 Hz).