Correct Answer: Fluorecence

Solution : The correct choice is the first option.

The given word "fluorecence" is misspelt. It has a missing letter "s". The correct spelling is fluorescence, which refers to the emission of light by a substance that has absorbed light or other electromagnetic radiation.

The meaning of the other options are as follows:

• Forebear: This refers to an ancestor or a predecessor, someone from whom a person is descended or originates.
• Forgo: This means to voluntarily give up, abstain from, or do without something, especially by choice.
• Flounder: This means to struggle, make clumsy attempts, or have difficulty moving or progressing, especially in a situation where one lacks direction or clarity.