Which of the Following Best Captures Sinnott-Armstrong's Main Argument for the Claim

Multiple Choice

Which of the following best captures Sinnott-Armstrong's main argument for the claim that the greenhouse gas emissions from a single "joyride" do not harm anyone?

A) Global warming will not harm anyone because it is a natural phenomenon that will remain within normal variation, so it cannot count as the cause of any harms.
B) The harm that will befall people because of my joyride results not from the joyride's emissions themselves but from the fact that my joyride will make other people believe that joyrides are morally permissible.
C) Even if those emissions warm the planet by a tiny amount, that tiny change will not cause any of the floods, droughts, heat waves, and other effects by which climate change will harm people.
D) Because greenhouse gases only warm the planet when they are emitted in very large quantities, the emissions from a single joyride will not warm the planet by even the tiniest amount.