Q: 45 (IAS/2019)

In the context of wearable technology, which of the following tasks is/are accomplished by wearable devices?
1. Location identification of a person
2. Sleep monitoring of a person
3. Assisting the hearing impaired person
Select the correct answer using the code given below.
question_year: 
2019
question_exam: 
IAS
stats: 
0,312,32,8,16,8,312