Select the correct observation for s(t) and b(t) a. plots are same in amplitude b. plots are same in frequency c. both plots appear as cosine waves. This is because the sine waves lag cosine waves by 90 degrees. By advancing the sine wave s(t) by 90 degrees, it appears identical to b(t). d. all are correct

(e seudq+0.z.d.2)soo.cv=q 864202-468 1 oc 86420-2-46-8