The given sentence states past actions as it narrates an incident.
Also, the first part is in active voice 'to sink' and the second part is in passive voice because the subject 'everybody' experiences the action 'to be rescued'. It cannot perform the action 'to rescue' if there is no object after it.
(The verb 'rescue' in active voice would require an object.)
Option A: 'Sank' is in simple past tense, active voice.
'Was rescued' is in simple past tense, passive voice.
It agrees to the situation presented. Hence option A is correct.
Option B: 'Has sank' and 'has rescued' are in present perfect tense and do not agree with the past situation.
Option C: Similarly, 'has rescued' isn't relevant to the given sentence.
Option D: 'Rescued' is a simple past tense verb in the active voice, but this part of the sentence is in passive voice 'was rescued', because the subject cannot perform the action 'rescued' without an object.
Hence options B, C and D are incorrect.