The following data are based on Karo, which is an Austronesian language spoken in Indonesia.

unsuffixed. suffixed glos

cu	cuem	'big'
pj	pjem	'lazy'
tw	twem	'far'
kn	knnem	'hard'
wn	wnnem	'curved'
kap	kaptem	'fat'
pt	pttem	'beautiful'
wk	wktem	'sick'

Please describe the phonological alternation that can be observed in the above data, and identify two hypotheses for the source of the alternation in the data (i.e., is it a suffix alternation or a root alternation?). Pursue an analysis under each hypothesis, and provide an argument in favour of one analysis over the other. Please be throughout and well-detailed explaining both hypothesis.