which is the best way to complete the text? taking a good photograph of the moon at night can be…

which is the best way to complete the text? taking a good photograph of the moon at night can be ______________ you may have better luck getting a clear image if you attach your camera to a tripod and choose a low iso setting, which decreases your cameras sensitivity to light. challenging; however, challenging, but, challenging, or
Answer
Brief Explanations:
The first part states that taking a good moon - photo is challenging. The second part offers a way to improve the situation. "However" is a proper transition word to show contrast between the difficulty and the solution. "But" is also a contrast word, but the semicolon before "however" is more appropriate for separating two independent clauses compared to a comma before "but". "Or" is used for presenting alternatives, which is not the case here.
Answer:
challenging; however,