Select the correct Active/Passive form of the given sentence.

The teacher said, “All that glitters is not gold.”

The teacher said that all that glitters is not gold.

The correct active/passive form of the given sentence is **The teacher said that all that glitters is not gold.

The sentence is in the simple present tense, which is used to describe an action that happens regularly or now. The active voice of the sentence is formed by putting the subject of the sentence before the verb and removing the word "by." In this case, the subject of the sentence is "teacher" and the verb is "say." So, the active form of the sentence is "The teacher said that all that glitters is not gold."

The other options are incorrect because:

• The teacher said, “All that glitters is not gold.” This is the original sentence in the active voice.
• The teacher said that all that glittered was not gold.” This is incorrect because the verb "glittered" is in the past tense, but the sentence is about an action that happens regularly or now.
• The teacher said that all that glitters were not gold.” This is incorrect because the verb "glittered" is in the past tense, and the word "were" is the plural form of "was." The subject of the sentence is "all that glitters," which is singular.
• The teacher said that all that glittered were not gold.” This is incorrect because the verb "glittered" is in the past tense, and the word "were" is the plural form of "was." The subject of the sentence is "all that glitters," which is singular.