The standard format is to list latitude first, then longitude. Positive values or 'N' represent north latitude; negative values or 'S' represent south. Positive values or 'E' represent east longitude; negative values or 'W' represent west. Option B correctly uses decimal degrees with negative for west. Option A is invalid (longitude can't be >180°). Option C reverses the order. Option D lists the direction letter before the value, which is a common alternative format but not the one specified as 'standard' here.