Hmmm,
Sounds to me to be conditionally unstable.
The ELR isn't given and neither is the SALR. I assume parcel is dry as it doesn't say otherwise.
If that is the case then the parcel will be cooling at the DALR, which is >3deg/1000'(ish). As no figures then I think assume an ELR of 2deg/1000' and an SALR of 1.8deg/1000. That places the ELR between the DALR and SALR, hence conditionally unstable.