Complex sentence: White and Blackmun declined to reach the issue of whether Massachusetts could limit distribution of contraceptives to only married couples by arguing that Massachusetts had asserted an implausible health rationale for limiting distribution of vaginal foam to licensed pharmacists or physicians.
Split into simpler sentences: White and Blackmun declined to reach the issue of whether Massachusetts could limit distribution of contraceptives only to married couples. They argued that Massachusetts had asserted an implausible health rationale for limiting distribution of vaginal foam to licensed pharmacists or physicians.