A R$=0\mathrm{.}70$ m radius cylindrical region contains a uniform electric field that is parallel to the axis and is increasing at the rate $5\mathrm{.}01012($V $/$ m$)/$ s$.$ The magnetic field at a point r $=1\mathrm{.}2$ m from the axis has a magnitude of: A$.0$ B$.1\mathrm{.}1105$ T C$.7\mathrm{.}0106$ T D$.5\mathrm{.}5106$ T E$.3\mathrm{.}5106$ T