What is the benefit to having baby steps in science occur as small bits of evidence accumulate? If someone could help me I would really appreciate it! Thank you

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space