Final answer:
Digging to the center of the Earth is not possible due to the extreme heat, pressure, and the current limitations of our drilling technology. The deepest humans have drilled is just over 12 kilometers, far from the nearly 6,400 kilometers to the Earth's core.
Step-by-step explanation:
To answer the question regarding Baby Luigi and his cousin digging a hole to the center of the Earth, the correct statement is b) Digging to the center of the Earth is not possible. There are several reasons for this, which are based on our current scientific understanding of the Earth's composition and the technology available.
Firstly, the Earth's core is incredibly hot, with temperatures reaching up to about 6,000 degrees Celsius (10,800 degrees Fahrenheit), which is comparable to the surface temperature of the Sun. Secondly, the immense pressure at such depths would make it impossible for any known material to maintain structural integrity. Lastly, even with the most advanced drilling technology, we have only been able to drill just over 12 kilometers into the Earth's crust, which is only about 0.2% of the way to the Earth's core. The Kola Superdeep Borehole in Russia is an example of one of the deepest man-made holes on Earth, but it is nowhere near the core.
Therefore, with our current technology, it is not feasible to dig to the Earth's center, and thus the suggestion that Baby Luigi and his cousin have a special tool that allows them to dig to the center is purely fictional.