(a) Lifeless things are the shattered parts of Ozymandias’ statue.
(b) He was a good sculptor because he read the feelings of Ozymandias and expressed them well on the statue.
(c) Ozymandias’ heart fed the passions by etching on his face expressions of the sneer of cold command, the frown and wrinkled lip, to enhance his fearful look, to intensify the majestic look and to command respect.
(d) Percy Bysshe Shelley.