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Remaining Time: 22 minutes, 07 seconds. Question Completion Status: QUESTION 1 After losing the Mars Observer, Mars Climate Orbiter, Mars Polar Lander, Deep Space 2, and CONTOUR missions NASA Added additional redundancy to propulsion systems to prevent accidental detonation of fuel in plumbing lines Decided to require communications during critical mission events for all future missions. Removed all prefabricated amulite from flight turbo encabulators Canceled the 'Faster-better-cheaper" initiative Added a requirement for redundant communications antenna in case an anomaly destroyed the primary unit 12 points Save Answer Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Close Window Save and Submit acBook Air

Answer 1

The above mentioned missions such as Mars Observer, Mars Climate Observer, Mars Polar Lander, Deep Space 2 and CNTOUR missions were very important for NASA and they worked for them very hard and theses missions also were histroical becuse NASA took very good Initiative after their Failures .

there were a common probolem on lossing all of these missions was Loosing communication hence after failure of these missions NASA decided to give more attention on communication with observers and rovers.

Hence option B is correct :

Decided to recquire communications during critical missions events for all future missions.