The annuity was before "Dec 31, 1997" or not? What does that mean?

While I filling data for 1099R, why the system asked me whether the annuity was before "Dec 31, 1997" or not?

What does that mean?

 

Usually what is plan type for 1199SEIU? A qualified Gov Pension Plan? Is that taxable?

 

Where can I check "last year you used standard deduction or itemized deductions"?

 

Thanks