Which of the following software groups (all members) uses Apache Solr as a text retrieval engine?
(i) VuFind
(ii) DSpace
(iii) Koha
(iv) OpenRefine
1
(i), (iii) and (iv)
2
(iii) and (iv)
3
(i), (ii) and (iv)
4
(i) and (ii)
5
Question Not Attempted