Problem $4\mathrm{.}2$

$*$ abc$1234($HEAD $->$ main$)$ Merge branch 'hotfix$-1\mathrm{.}0\mathrm{.}1\text{'}$

$|\backslash$

$|*$ def$5678($hotfix$-1\mathrm{.}0\mathrm{.}1)$ Fix critical bug in v$1\mathrm{.}0$

$*|$ ghi$9012$ Merge branch 'feature$-$c$\text{'}$

$|\backslash \backslash$

$|*|$ jkl$3456($feature$-$c$)$ Add feature C

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$*|$ mno$7890$ Update documentation

$|/$

$*$ pqr$2345$ Merge branch 'release$-1\mathrm{.}0\text{'}$

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$|*$ stu$6789($release$-1\mathrm{.}0)$ Prepare for release $1\mathrm{.}0$

$*|$ vwx$0123$ Continue development on main

$|/$

$*$ yza$1357$ Initial commit

Questions:

$1.$ How many different branches can you identify in this history?

$2.$ What is the relationship between the release$-1\mathrm{.}0$ and hotfix$-1\mathrm{.}0\mathrm{.}1$ branches?

$3.$ In what order were the different branches merged into main?

$4.$ Describe a scenario that might have led to this Git history, including the purpose of each branch.

$5.$ Are there any commits that might have resulted in merge conflicts? Explain your reasoning.