Respuesta :
the answer is c. she needs to keep fit but shouldnt put too much stress on her body
The changes that Mary can make as she is pregnant is to keep swimming, but try walking instead of running, and do water aerobics instead of lifting weight lifting, i.e., option C.
What is water aerobics?
Water aerobics is aerobic exercise in water that can be done mostly vertically without swimming in waist-deep water.
The water supports the belly and reduces pressure from the spine and pelvis while swimming.
The changes that Mary can make as she is pregnant is to keep swimming, but try walking instead of running, and do water aerobics instead of lifting weight lifting.
Thus, the correct option is C.
For more details regarding water aerobics, visit:
https://brainly.com/question/25439950
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