Identify the part of the sentence which is grammatically INCORRECT:

A rich variety of educational software will develop and/made available for students/and teachers at all levels

will develop and

The correct answer is Option (2) → will develop and

The phrase "will develop and made available" is incorrect because:

• "Will develop" suggests that the software will create itself, which is incorrect. It should be in the passive form.
• "Made available" is already in the passive voice, so "develop" should also be in the passive voice ("will be developed").

CORRECT SENTENCE WILL BE➡ "A rich variety of educational software will be developed and made available for students and teachers at all levels."

OTHER OPTIONS

✔ "A rich variety of educational software" – Correct; subject phrase.
✔ "Made available for students" – Correct; passive voice structure.
✔ "And teachers at all levels" – Correct; grammatically sound.