Which of the following best defines contraceptive?
a. a device used to prevent pregnancy and disease
b. a device used to prevent pregnancy
c. a method or device used to prevent pregnancy
d. a device used to prevent disease

The best answer is C. Contraceptive is best described as a method or device that is used to prevent pregnancy. This is used to control birth or fertility. There a number of contraceptive that can be used and are proven to be effective. This includes oral contraceptive pills, vaginal contraceptive ring, IUD and contraceptive patch.

Unlike  ct scans, which use x-rays,  mri scans  use powerful magnetic fields and radio frequency pulses to produce detailed pictures of organs, soft tissues, bone and other internal body structures.  differences between  normal and abnormal tissue is often clearer on an  mri  image than a  ct.you can see more with a mri scan. for example on an mri you can see internal bleeding.