Brainstorming is the technique used to help groups generate multiple ideas and alternatives for solving problems.
This is usually through a group discussion where the members are asked to throughout a list of ideas and solutions and the group discusses them to find a good alternative.
Answer:
All of them.
Explanation:
For considering the annuity formula we can determinate all the proposed factor:

C represent II the amount of each cash flow
r = represent the discopunt rate
while time or "n" represent the numebr of cashflow we have to calcualte the present value.
The timing refer wether the payment are made at the beginning or end of the period.
When made at the beginning it is an annuity-due
and the (1+r) factor multiplies the previous formula to represent the addtional period of capitalization each cashflow has or the one period less to discount for each cashflwo in cases of prresent value.
Taiwan is an economic success. Since 1992, Taiwan’s GDP growth has averaged 4.5 percent. This raised real per capita income from $9,116 in 1992 to $19,762 in 2012, with the result that today Taiwan is the 28th wealthiest country globally, and 6th richest country in Asia. And along the way Taiwan has transformed itself from a dictatorship into a vibrant democracy.[1]
A.
because as you're passing the page you are scanning it and looking for the answer