Went for a bike ride today , first one of spring . While on East Pleasant St I saw an eagle perched in a low branch in this large yard that had maple trees with sap buckets . I was about twenty feet away and seemed to startle him .

Pick from:
[i] None of the above choices .;
[ii] To feed the eagles .;
[iii] To make maple syrup .;
[iv] To make tree sap .;
Q: What may be the reason there are sap buckets on the trees ?
[iii]