In this text, the author tells us about __________.
A.
how he suffered on Robben Island and how he fought against the curel prison warders.
B.
how he pursued what became his two favorite hobbies in prison.
C.
how he managed to find meaning and pleasure in his imprisonment.
D.
how he took advantage of the prison authorities' permission to start a garden in the courtyard and what he learned and how he benefited from the gardening experience.