From the sentences provided below, identify the one that contains a grammatical error. If you find all of the sentences to be grammatically correct, select 'All are correct' as your response.

Correct Answer: "Microsoft has been enhancing cloud security and streamline remote work solutions."

Step-by-Step Explanation:

1. Understanding Parallel Structure (Parallelism):
When a sentence connects two or more verbs or phrases using a coordinating conjunction like "and", those items must share the same grammatical form to maintain balance and proper grammar.

2. Analyzing the Error in the Sentence:
In the given sentence, the auxiliary verb present continuous structure is established by "has been":
- First verb phrase: has been enhancing cloud security (uses the present participle form "-ing")
- Coordinating conjunction: and
- Second verb phrase: [has been] streamline remote work solutions (incorrectly uses the base verb form)

To keep the verbs parallel with "has been", the second verb must also be in the present participle form (streamlining).

3. Correct Version of the Sentence:
"Microsoft has been enhancing cloud security and streamlining remote work solutions."

4. Verification of Other Options:
- "This will be a promising decade of innovation for strengthening the global market." - Grammatically correct.
- "A severe blizzard is a dangerous storm and poses a significant threat to local wildlife." - Grammatically correct.
- "Industrial operations discharge massive quantities of greenhouse gases through coal combustion." - Grammatically correct.