A $0\mathrm{.}70-$m radius cylindrical region contains a uniform electric feld that is parallel to the axis and is lincreasing at the rate $5\mathrm{.}0{10}^{12}\frac{V}{m}*s.$ The magnetic feld at a point $0\mathrm{.}25$ m from the axis has a magnitude of:

$0T$

$7\mathrm{.}0{10}^{-6}T$

$2\mathrm{.}8{10}^{-5}T$

$5\mathrm{.}4{10}^{-5}T$

$7\mathrm{.}0{10}^{-5}T$