Ralph is very prompt. If he says he will be there at 10:00 a. m., he will be there exactly at that time. Furthermore, he will not begin another task until he is completely done with the one he is currently working on. Which time perspective does Ralph have

monochronic

Explanation:

Based on the scenario being described within the question it can be said that Ralph seems to have a monochronic time perspective. This term refers to focusing completely on just one thing at a time instead of multitasking several things. Such as Ralph is doing by focusing all his attention on the one task that he has promised to complete.

answer; i do believe its (b) 12.5 years of age;

i need more info !