biology question help

Hi can someone please help answer this MCQ, and explain reasoning why:
Ash trees are an important part of the British landscape.
In 2012, a fungal disease known as ash dieback arrived in the UK from mainland Europe.
Which of the following could explain how ash dieback could have reached the UK from mainland Europe?
1 Spores carried on the wind
2 Young diseased trees imported from Europe and planted in the UK
3 Contaminated soil from a previously infected crop
A) 1, 2 and 3
B) Only 1 and 2
C) Only 2 and 3
D) Only 1