Sections 1, 2, and 10 are significant primarily because they suggest the likelihood that
A Widow Wycherly is actually the woman in the full-length portrait.
B Dr. Heidegger wants to include his guests in an experiment with the water.
C Dr. Heidegger plans to drink some of the water from the vase and needs witnesses.
D the guests will be asked to witness Dr. Heidegger's transformation when he drinks the water.