Chromosomal mutations that may activate cellular oncogenes by moving them to new regulatory sequences where they become over-expressed.(a) duplications; deletions(b) inversions; translocations(c) duplications; inversions(d) deletions; translocations(e) aneuploidy; deletions

(d) Deletions; translocations

Explanation:

Deletion mutations: It is the removal of a number of nucleotides from a DNA sequence.  Deletions that result in frameshifts, that is, disrupt the 3-nucleotide reading frame can cause changes in regulatory sequences inducing over-expression of certain genes.

Translocation mutations: Are caused the the rearrangement of genes in chromosomes that are usually in close proximity. Encountering new enhancers and/or promoters can cause oncogene activation.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

the answer is c because it is most logical.