17. What are the properties of the SPDT transporter characterized in this article?
(A)SPDT is expressed in the roots and it mediates phosphate uptake from the soil.
(B)SPDT is expressed in the seeds and controls phosphate storage in the husk.
(C) SPDT is expressed in the nodes and control phosphate the whole-plant phosphate distribution.
(D) SPDT transports phosphate into leaves, thereby decreasing transport to the seeds.