I am a PhD student, in the process of submitting a paper and I was asked to check (or not check) a box to state if :
This contribution was solely written by students and/or doctoral candidates.
This paper was solely written by me as first author, with my supervisors as co-authors for reviewing. It deals mostly with measurements and their interpretation, which were done by me exclusively, the only non-original content is a figure I'm citing from another paper. However, my supervisors reviewed this paper, and also gave me advice during the research.
Is this sentence to be interpreted drastically (meaning I should not check it since the work is done by a supervised student, and not student(s) exclusively). And in a more general way, to which point would a paper be no longer considered as "student contribution" ?
This may seem obvious but I'm not familiar with publications processes since it's the first time I submit something.