Determine if the sequence is monotonic and if it is bounded.
an = (2n + 9)!/ (n+2)!' n≥1 ,
Select the correct answer below and, if necessary, fill in the answer box(es) to complete your choice.
A. {a} is monotonic because the sequence is nondecreasing. The sequence has a greatest lower bound of upper bound. (Simplify your answer.)
B. {a} is monotonic because the sequence is nonincreasing. The sequence has a least upper bound of bound. (Simplify your answer.)
C. {a} is not monotonic. The sequence is bounded by a lower bound of and upper bound of (Simplify your answers.)
D. {a} is not monotonic. The sequence is unbounded with no upper or lower bound. but is unbounded because it has no but is unbounded because it has no lower