This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Which of the following is/are arboviral diseases -a) Japanese encephalitisb) Denguec) Yellow feverd) Hand-foot-mouth diseasee) Rocky montain spotted fever 
Select and explain. 
A. ab, B. abc, C. acd, D. bcd
B: abc
Answer: B: abc 
Explanation: None