at the samt time many families haiving greater incomes can take basic shelter for granted and proceed to satisfying higher needs in housing.

what correction should be made to this sentence?
a)change can to must
b)change the spelling of proceed to procede
c)insert a comma after granted

You're still not indicating what you think is correct.

Are there any other choices for the answer? None of these choices are correct.

??

ithink the answer is a?

No, "a" is not correct. I don't think any of these answers is correct. Here's how I think this sentence should read:

At the same time, many families having greater incomes can take basic shelter for granted and proceed to satisfy higher needs in housing.

The verb needs to be "satisfy" not "satisfying" because it's forming an infinitive with the word "to" (after which -ing verbs are incorrect).

The correction that should be made to this sentence is:

c) Insert a comma after "granted."

The corrected sentence would be: "At the same time, many families having greater incomes can take basic shelter for granted and proceed to satisfying higher needs in housing."

Adding a comma after "granted" helps to separate the introductory phrase "At the same time" from the main clause of the sentence, which improves clarity and readability.