Which of the Following Statements Describes the Behaviour of the Sequence

Which of the following statements describes the behaviour of the sequence of numbers which satisfy $Y _ { 1 } = - \frac { 1 } { 2 } Y _ { t - 1 } ^ { 2 }$ with initial condition, Y₀ = - 1?

A) Uniform convergence
B) Oscillatory convergence
C) None of these
D) Oscillatory divergence
E) Uniform divergence