Events, skew, and earnings

The stock is at 40 and the at-the-money straddle in the event expiry costs 3.00. What range of prices is the market paying for?

• 39 to 41
• About 37 to 43
• About 34 to 46

Which of these is skew?

• A put spread 3 points away paying more than a call spread 8 points away
• A put spread and a call spread, each 5 points away, trading at different implied volatilities
• Implied volatility falling the morning after earnings