Traditional Culture Encyclopedia - Weather inquiry - In the weather forecast of Shaanxi province 1 month, the lowest temperature in Yan 'an is -6℃, and the lowest temperature in xi 'an is 2℃, which is the lowest temperature in Yan 'an that day.

In the weather forecast of Shaanxi province 1 month, the lowest temperature in Yan 'an is -6℃, and the lowest temperature in xi 'an is 2℃, which is the lowest temperature in Yan 'an that day.

Because the lowest temperature in Yan 'an is lower than that in Xi 'an, the lowest temperature in Xi 'an can be used.

That is 2-(-6) = 2+6 = 8.

So choose a.