D: An ill defined and ever shrinking area around Israel.

Palestinians have an understanding with Israel. They kill Israelis, and Israel steals their land. They use the stealing of the land to justify killing more Israelis, and Israel uses the killings to justify stealing more land.

The proportionate rate of (unreplenishable) land loss seems to be greater than the proportionate (replenishable) population loss, giving the process a predictable outcome.

See