In Mendel's Experiments, If the Gene for Tall (T1) Plants

In Mendel's experiments, if the gene for tall (T1) plants was incompletely dominant over the gene for short (T2) plants, what would be the result of crossing two T1T2 plants?

A) 50% tall, 25% intermediate, and 25% short
B) 25% tall, 25% intermediate, and 50% short
C) All the offspring would be tall.
D) 25% tall, 50% intermediate, and 25% short
E) All the offspring would be intermediate.