निम्नलिखित वाक्य का पैसिव वॉइस (Passive Voice) में सही रूपांतरण चुनिए: 'My father writes a story.'

Identify the voice of the following sentence: 'Simultaneously, the rapid spread of revolutionary ideas across the continent was facilitated by Johannes Gutenberg's invention of the printing press.'

Identify the voice of the following sentence: 'This thermal stability is maintained by a massive sunshield.'