What is the conservative argument for restricting access to abortion?

Choose either Topic A or Topic B. To answer these topics completely, it takes a minimum of 350 words. A complete thoughtful answer is more important than word count.
Topic A:

What is the conservative argument for restricting access to abortion? What is the liberal argument for preserving access to abortion?

Why is person hood such an important concept in the abortion debate? Which view do you find most plausible and why?