It has been observed that diseases caused by repeat expansions are the result of trinucleotide repeats rather than smaller or larger repeat lengths. If non-trinucleotide repeat expansions (i.e. + 1 or + 2 insertions or -1 or -2 deletions) occurred in the coding region of a gene, which type of mutation would you expect to be the most likely? a. frameshift b. silent c. missense d. nonsense