IMO-B
(A) That the exploration and subsequent mapping of the underwater cave system’s Byzantine interiorrequires extensive experience and caution has been proven both by the near-death experiences of amateur cave divers and by the massive costs of the rescue operations to save those amateur cave divers.:- the exploration and subsequent mapping is plural and singular form is used
(B) That the exploration and subsequent mapping of the underwater cave system’s Byzantine interior require extensive
...
(A) That the exploration and subsequent mapping of the underwater cave system’s Byzantine interiorrequires extensive experience and caution has been proven both by the near-death experiences of amateur cave divers and by the massive costs of the rescue operations to save those amateur cave divers.:- the exploration and subsequent mapping is plural and singular form is used
(B) That the exploration and subsequent mapping of the underwater cave system’s Byzantine interior require extensive
...










