Regarding assigned case Vizcaino v$.$ Microsoft Corp., $97$ F$\mathrm{.}3$d $1187(9$th Cir. $1996)$:

As a last ditch effort, what contract theory does Microsoft use to support their contention that the Employee Stock Purchase Plan $($ESPP$)$ does not apply to the independent contractors?

Group of answer choices

All of these answer choices.

There was no mutual assent.

The offer of participation in ESPP was never accepted by the independent contractors,

The offer of participation in ESPP was never communicated to the independent contractors.