The Grave Domain cleric (Xanathar's Guide to Everything, p. 19-20) gets the Circle of Mortality feature at 1st level, part of which states:
In addition, you learn the spare the dying cantrip, which doesn’t count against the number of cleric cantrips you know. For you, it has a range of 30 feet, and you can cast it as a bonus action.
This wording seems to imply the option, rather than necessity, to cast it as a bonus action. Am I correct in assuming this? Can I still cast it as an action and have my bonus action available?