问题

─ _______ is it from Sunshine Town to the centre of Beijing─ It’s about 20 kilometres _______ our school.
A:How often ; far from
B:How long; away from
C:How far; far away from
D:How far; away from;
B:How long; away from
C:How far; far away from
D:How far; away from;
正确答案是: