50 POINT QUESTION!!! You are researching the following question: What causes tornadoes? Choose the best query to use when searching of the answer.
Acauses NOT tornadoes
Btornadoes OR causes
C"Tornado causes"
Dcauses -- tornadoes
P.S. This is Boolean language.
Acauses NOT tornadoes
Btornadoes OR causes
C"Tornado causes"
Dcauses -- tornadoes