A nurse is caring for a client who is in her first trimester of pregnancy and is wondering if she can continue to exercise during pregnancy. Which of the following responses by the nurse would be appropriate?

A Activities that raise the body temperature, such as saunas and hot tubs, are safe until the third trimester. B Exercising during pregnancy is not recommended. D It is recommended that pregnant clients limit their exercise routine to stretching activities on a mat several times a week. C Daily jogging for up to 30 minutes is fine throughout the pregnancy.