Eds is given by . . . . . . . . A. $$\frac{{Vds}}{L}$$ B. $$\frac{L}{{Vds}}$$ C. $${Vds}$$ D. $$\frac{{Vdd}}{L}$$

The correct answer is A. $$\frac{{Vds}}{L}$$

The electric field (Eds) in a MOSFET is given by the following equation:

$$Eds = \frac{{Vds}}{L}$$

where $Vds$ is the drain-source voltage and $L$ is the channel length.

Option B is incorrect because it divides $L$

Option C is incorrect because it does not include the channel length.

Option D is incorrect because it does not include the drain-source voltage.