An operation analyst is forecasting this year's demand for one of his company's products based on the following historical data

YEAR

Four years ago

Three years ago

Two years ago

l

QUANTITY SOLD

$10,000$

$12\mathrm{.}000$

$18,000$

$20,000$

What is this year's forecast using the natve approach?

Mutiple Choice

$18\mathrm{.}000$

$12\mathrm{.}000$

$20,000$

$22\mathrm{.}000$

$15\mathrm{.}000$