Which line of code is equivalent to depth += 50 * offset?

What is the equivalent line of code to depth += 50 * offset?

Final Answer: The line of code (A) depth = depth + (50 * offset) is equivalent to the given code 'depth += 50 * offset'.

Explanation:

The expression depth += 50 * offset means "add 50 times the value of offset to the current value of depth". This operation updates the value of the variable depth. Option A, depth = depth + (50 * offset), achieves the same result as the given expression. It adds the product of 50 and the value of offset to the current value of depth and then assigns the result back to the variable depth. The other options are not equivalent: Option B (offset = depth + (50 * offset)) updates the value of offset based on the current value of depth, not the other way around as required by the given expression. Option C (offset = depth + 50 * offset) also updates the value of offset based on depth, not depth based on offset as intended. Option D (depth = (depth + 50) * offset) first adds 50 to the current value of depth and then multiplies the sum by offset, which is not the same as the given expression. Option A is the answer.
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