Final answer:
The word 'consequently' is the correct choice as it shows a cause-effect relationship between the ringing alarm and the disturbance it causes.
Step-by-step explanation:
The appropriate word to complete the sentence 'His alarm rings every 10 minutes; ______________, the noise disturbs everyone in the house.' is 'consequently'. This is because the word 'consequently' indicates that the ringing of the alarm has the effect of disturbing everyone in the house. The other options (however, nevertheless, specifically) do not fit the context as they do not express a cause-effect relationship. For instance, 'however' and 'nevertheless' are typically used to introduce a contrast to the preceding statement, and 'specifically' is used to indicate a specific detail or to elaborate further on a point.