D. Dad
In this sentence, dad is being used as a name or proper noun. It needs to be capitalized.
<span>By being able to develop his creative talents, he profited from the Depression while many other suffered.
Yip Harburg wrote the song, "Brother, Can You Spare a Dime" together with Jay Gorney. The song was inspired by the Great Depression.
</span><span>"I didn't want a song to depress people. I wanted to write a song to make people think. It isn't a hand-me-out song of 'give me a dime, I'm starving, I'm bitter', it wasn't that kind of sentimentality" - Jay Gorney's answer in an interview.</span><span>
</span>
Gravity causes water to infiltrate until it reaches impermeable zones where it is diverted laterally. Gravity generates the flow of springs, rivers, and wells. If the pores in rocks and sediments are connected, gravity allows the water to move slowly through them.