The theory that a severe drought was responsible for the disappearance of the Jamestown colony and ...

The theory that a severe drought was responsible for
  the disappearance of the Jamestown colony and the
  hardships of the Virginia colony came from evidence
  a. that showed corn from plants grown during that
  time.
  b. that showed the trees completely lacked growth
  rings.
  c. that showed Cypress trees from both colonies
  experienced low growth.
  d. from witnesses from both colonies.
  e. none of these.

Question 2

Which of the following environments would be most
  likely to produce trees without annual rings?
  a. tropical rain forest
  b. northern evergreen forest
  c. areas with alternating wet and dry seasons
  d. temperate-deciduous forests
  e. none of these, because annual rings are
  characteristic of all trees