For Platinum Nugget Hotel in Las Vegas, Saturday Is the Best

For Platinum Nugget Hotel in Las Vegas, Saturday is the best day of the week for business. The gambling take for the hotel on Saturdays over the past four weeks was: Week $Take
1) $250,000
2) $190,000
3) $300,000
4) $280,000
Using a moving average with n = 3 terms, what would be the forecast for week 5?

A) $256,667
B) $246,667
C) $255,000
D) $232,124