Final answer:
The longest string length from the given options is 1.1, as it is greater than the other lengths when they are all converted to decimal form.
Step-by-step explanation:
The question is asking which string length is the longest out of the given options. To compare these lengths, we need them all in the same format; 1.1 is already in decimal format, but we need to convert 3/4 and 2/3 into decimals to compare them effectively with 1.1 and 0.5.
3/4 as a decimal is 0.75, and 2/3 is approximately 0.6667. Now, comparing all the lengths in decimal form, we have:
- 1.1 (option a),
- 0.75 (option b),
- 0.5 (option c), and
- 0.6667 (option d).
By looking at the decimal values, we can see that the longest string length is 1.1, which corresponds to option a.