Massachusetts, a state known for its liberal political climate, is about to offer motorists specialty license plates that express opposition to abortion rights. The new “Choose Life’’ plate, which features an illustration of a woman cradling an infant, becomes one of 18 Massachusetts tags that provide publicity and funding for causes, including breast cancer research, youth hockey, and environmental preservation. They cost drivers $90 every two years. After the state recoups the cost of producing the “Choose Life’’ plates, the proceeds will go to organizations that encourage women with unwanted pregnancies to consider options other than abortion, such as adoption....