Prime numbers refer to natural numbers that contain only two factors (that is, they can only be divided by themselves and 1). Twin prime numbers refer to two prime numbers that differ by 2. For example, 3 and 5, 17 and 19, etc. So-called twin prime numbers Were proposed by the Greek mathematician Euclid, meaning that there are infinite pairs of twin primes. The topic has not been proven. Recently, the latest research by a Chinese lecturer in the United States has shown that although an infinite number of Prime pairs with a difference of 2, there is an infinite number of prime pairs with a difference of less than 70 million. Related parties believe that if this result holds, then it will be a major breakthrough in the development of number theory. Which of the following, if true, best supports the views of the parties concerned? ['The number of 70 million is very large, which is still far from the 2 given by the twin prime conjecture.', 'This is the first time someone has formally proven that there are infinitely many sets of prime pairs with spacing less than a fixed value.', 'Proof of the twin prime number conjecture requires a long, progressive process.', 'This Chinese lecturer has long been engaged in related teaching and research in the field of mathematics.']