Based on the passage, which two of the following sentences have incorrect parallel structure? The ability to capture moving objects and record small details was impossible with the earliest cameras.
A camera is a device that allows light to fall on a screen, which is recorded on film or as a digital file the moment you click the capture button.
Before the invention of modern cameras, people were not able to capture exact images but creating images using chemicals.
However, modern day cameras use digital technology and perform far better than their earlier counterparts.
They were thrilled to know that they could now capture special moments, save them in a tangible form, and making memories.

Parallel structure (or parallelism) means repeating the same pattern of words or phrases to show that two or more ideas have the same importance. Elements that are alike in content and function should have the same grammatical form.
The first sentence "They were thrilled to know that they could now capture special moments, save them in a tangible form, and making memories" is incorrect because the verbs "capture," "save," and "making" are not parallel. In order to make it parallel, the phrase "making memories" should be changed to its infinitive form "make memories."
The sentence "Before the invention of modern cameras, people were not able to capture exact images but creating images using chemicals" is incorrect because the verb phrase "were not able to capture" and the verb "creating" are not parallel. The sentence can be corrected as follows: "Before the invention of cameras, people were not able to capture exact images but were able to create images using chemicals."

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