C-04-Q094mediumsingle_mcq0.000230.000230.00023 এর বৈজ্ঞানিক রূপ—a2.3×10−42.3 \times 10^{-4}2.3×10−4b23×10−523 \times 10^{-5}23×10−5c0.23×10−30.23 \times 10^{-3}0.23×10−3d2.3×10−32.3 \times 10^{-3}2.3×10−3