English, asked by Ismailhossain, 4 days ago

___ twelve years, Opal Systems has been designing operating systems for government institutions.
• In
• By
• For
• During

Answers

Answered by sabainternational232
2

Answer:

In.

Explanation:

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Answered by anand9980457666
0

Answer:

by

Explanation:

by 12 years opal systems has been designing operating system for government institutions

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