Being a leader isn't easy. That is a recurring theme on The CW's The 100, which seems to love nothing more than putting Bellamy (Bob Morley) and Clarke (Eliza Taylor) in impossible situations and forcing them to somehow find a way to move forward.

Time and time again, we've seen the two of them make heart-wrenching choices - from Clarke killing Finn (Thomas McDonell), to Bellamy poisoning his sister Octavia (Marie Avgeropoulos) to when they both pulled the lever at Mount Weather together, killing its residents to protect their own people.

We've seen Clarke and Bellamy grow as leaders throughout the series, and it hasn't always been easy for them. As Clarke memorably told Bellamy in the Season 4 finale, a good leader doesn't just think with their head or their heart, but they think with both. That hasn't always been easy for Clarke and Bellamy to do, so we asked Eliza Taylor and Bob Morley to look back on some of their characters' most pivotal choices to reveal what they were thinking with: their head or their heart.

Check out their answers in the video above!

The 100 will return to The CW in 2019.

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