Topic: Group verb,

Best Answer Explained in Below-:

The phrase "I am looking forward to the opportunity" is a common English expression that conveys anticipation or excitement about a future event or situation. The key word in this phrase is "forward," which suggests a sense of moving ahead in time and eagerly awaiting something.

When we use "looking forward to," it specifically means to eagerly anticipate or have positive feelings about something that will happen. For example, someone might say they are looking forward to a vacation, indicating they are excited about the upcoming trip.

In contrast, the other options do not fit grammatically or contextually in this expression. "Looking for" (Option A) implies searching for something, which changes the meaning entirely. "Looking on" (Option B) would suggest observing something, while "looking up" (Option C) generally refers to improving or seeking information, neither of which conveys the intended anticipation.

Thus, "forward" is the only option that correctly completes the phrase, emphasizing eagerness and positive expectation regarding the opportunity in question.