Guess the meaning of the words from the text. 1 cutting-edge a) the most modern and advanced point in the development of something b) a feature that gives someone or something an advantage

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Guess the meaning of the words from the text.
1 cutting-edge
a) the most modern and advanced point in the development of something
b) a feature that gives someone or something an advantage
2 run over (schedule
a) to continue for longer than planned
b) to explain something again
3 behind (schedule
a) not modern
b) too late or slow
4 trial trips
a) testing trips
b) difficult trips
5 maiden voyage
a) first voyage
b) voyage only for women