You are standing on the shore of a lake and spot a fish swimming below the surface of the lake. ...

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You are standing on the shore of a lake and spot a fish swimming below the surface of the lake. You want to kill the fish first by throwing a spear and next, by pointing a high-power laser torch. How should you aim the spear and torch, respectively, from the options given below?
I. above the apparent position of this fish
II. below the apparent position of the fish
III. directly at the apparent position of the fish
a. SPEAR : II; LASER : III
b. SPEAR : I; LASER : II
c. SPEAR : II; LASER : II
d. SPEAR : III; LASER : III
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