Dehydration of 1-butanol with concentrated sulfuric acid at 140∘C results in the formation of mainly trans-2-butene. According to these results, which of the following conclusions might be valid?
A) The reaction undergoes an E2-type elimination mechanism.
B) The reaction follows a new mechanism involving the formation of a carbanion intermediate.
C) The reaction undergoes an E1-type elimination mechanism in conjunction with a hydride shift.
D) The reaction undergoes an E2-type elimination mechanism in conjunction with a methyl shift.
E) The reaction undergoes an E1-type elimination mechanism with no shifting.
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