Which matrix represents the rotation of a vector counterclockwise about the origin through an angle of $30$ degrees?

$$open square brackets table row cell $0\mathrm{.}866$ end cell cell negative $0\mathrm{.}5$ end cell row cell $0\mathrm{.}5$ end cell cell $0\mathrm{.}866$ end cell end table close square brackets$$

$$open square brackets table row $01$ row $10$ end table close square brackets$$

$$open square brackets table row cell $0\mathrm{.}5$ end cell cell negative $0\mathrm{.}866$ end cell row cell $0\mathrm{.}866$ end cell cell $0\mathrm{.}5$ end cell end table close square brackets$$

$$open square brackets table row cell $0\mathrm{.}866$ end cell cell $0\mathrm{.}5$ end cell row cell negative $0\mathrm{.}5$ end cell cell $0\mathrm{.}866$ end cell end table close square brackets