The right answer is A.
Let's resume Plant tissues and their roles:
* Meristems are devolved to growth by cell multiplication;
* The covering fabrics ensure the protection of the organs vis-à-vis the
external environment;
* Parenchyma represent the bulk of the organ volume; they are
formed of poorly differentiated cells and perform various functions:
chlorophyll assimilation, storage of reserves ...
* Support tissues are made of thick-walled cells of lignin or
cellulose, giving the organs a certain rigidity;
* The conductive tissues ensure the circulation of the sap, to the organs
aerial for raw or ascending sap, to underground organs for
sap developed or descending;
* The endoderm and the pericycle are two cellular bases surrounding the
central cylinder;
* The secretory tissues release various substances (nectar, latex ...).