Men first walked on the moon during the summer of 1969, when I was eight years old. I knew then that pretty much anything was possible. It was as if all of us, all over the world, had been given permission to dream big dreams. I was at camp that summer, and after the lunar module landed, all of us were brought to the main farm house, where a television was set up. The astronauts were taking a long time getting organised before they could climb down the ladder and walk on the lunar surface. I understood. They had a lot of gear, a lot of details to attend to. I was patient. But the people running the camp kept looking at their watches. It was already past eleven. Eventually, while smart decisions were being made on the moon, a dumb one was made here on Earth. It had gotten too late. All of us kids were sent back to our tents to go to sleep. I was completely peeved at the camp directors. The thought in my head was this: “My species has gotten off our planet and landed in a new world for the first time, and you people think bedtime matters?” But when I got home a few weeks later, I learned that my dad had taken a photo of our TV set the second Neil Armstrong set foot on the moon. He had preserved the moment for me, knowing it could help trigger big dreams. We still have that photo in a scrapbook. I am a scientist who sees inspiration as the ultimate tool for doing good. When you're putting people on the moon, you're inspiring all of us to achieve the maximum of human potential. Give yourself permission to dream. Fuel your kids' dreams too. Once in a while, that might even mean letting them stay up past their bedtimes. Question: Which part of speech is the underlined word in the sentence: 'I was completely peeved at the camp directors.'

1. Adjective
2. Conjunction
3. Pronoun
4. Adverb