Which of the Following Is a True Statement About Travel

Which of the following is a True statement about travel that has both business and personal aspects?

A) Transportation costs are always fully deductible.
B) Meals are not deductible for this type of travel.
C) Only half of the cost of meals and transportation is deductible.
D) The cost of lodging and incidental expenditures is limited to those incurred during the business portion of the travel.
E) None of the choices are correct.